XXX Fiction

Prelude

You stumbled across Fran in the local shopping mall three days ago. You haven’t seen her since the last day of school twelve years ago. Were you school friends? Well, okay, not really. You didn’t exactly get along. You moved in different circles. You were with the cool kids, a cheerleader slept with the Rugby team, and she was with the nerdy A-grade group. But you got chatting and hit it off as adults much better. After lunch at the food court, Fran invited you to her house for lunch on Saturday. She promises it’s out in the great outdoors with nature. So, with the map she drew for you, you set out.

****

twelve February 22

She wasn’t joking when saying, ‘Out in the great outdoors.’ Without her map, you’d never have got close to this place. Even with it, you feel like you got lucky. It’s a beautiful piece of Queensland Australian semi-rain forest, however. You remember back to those school years and seem to remember Fran as one of those nature-loving hippy types. Well, good on her for going after her dream, you suppose. You finally get there, a bit late. Fran comes out, unlocks the gate at the front of her property, and directs you to drive into the small garage she left open for you. You first notice the dogs running around as soon as you get out. No wonder the yard is so well-fenced.

“I breed and train them,” says Fran.

“They’re Great Danes, aren’t they? They’re huge!” I reply.

“Believe it or not, they’re still only puppies. They’ve just turned eight months old, my latest litter.”

“Wow, which ones are the parents?”

“None of them. Their parents were on loan and have gone back to their owners. Let’s go inside. Lunch is all laid out and ready.”

Lunch was wonderful, if a bit too vegetarian. Fran brews a wicked cup of coffee, however.

***

You wake up inside a large room, naked, bound face down, and bent over a well-padded low bench, with your ass angled up in the air. Something feels wrong down below. Your vagina has had one of those small, powerful egg vibrators inserted into it and taped using a strong cloth tape. That’s not the worst. Your asshole has a small butt plug wedged in it. You struggle with your restraints and soon realize you are not going anywhere. There’s also nothing you can do about the plight of your vagina. You do have better luck with the butt plug in your ass. It’s not very large, and after a few tries, you expel it from your rectum with a grunt.

“Oops! Maybe you should have kept that in for a bit longer. It would have made it easier for you with what’s to come!” It’s Fran, who has just led one of the Great Danes. She notices you looking at the dog. “Oh, his name is “Buster. Please don’t blame me. The customer named him!.”

You suddenly get a chilling premonition of what is about to happen.

“Ahhh, I see the light just come on upstairs. That’s pretty quick for you! Okay, I will give you some advice you can take on board or ignore. Taking it on board will make it easier for you, especially for the early rough phase. Don’t ask any questions. Just listen for now.

“As I said earlier, I train Great Danes. I train them very well, especially female customers, who pay extremely well. Now, you’re going to train Buster here over the next month. Sometimes, it takes longer, but I’m getting pretty good at this, and so will you! Now, Buster will soon make sweet love to you. It’s his first time. When they start, they are very eager and rough. They want to get into you deep and hard and let you have their seed.

“Let him have his way. It will be easier and won’t hurt as much. They are very big boys, as you will soon experience. Over the next few weeks, he will come to own you as his Bitch. The owner has asked this one to be especially possessive and sexually aggressive. Again, when he wants to have you, best you just let him have his way, and you’ll get along just fine!”

“Why have you done this to me?” you shout.

“Oh, is it question time? I’m sorry, I didn’t say it was question time yet. But I’m in a really good mood. I needed a new Bitch. My old one wore out. Then I met you! You were always a bitch in school anyway, so I thought you would be a perfect match. You can have one more question before you get the most amazing fuck of your life! Go!”

Almost in tears now, you can only ask, “But why my ass?”

“Oh yeah, good question. I should have mentioned that myself! Simple, it’s what the customer asked for. Customer satisfaction is rule number one! She wants it trained to take the back door. Do you know why she named him Buster? You’ll see! From what I heard back in school, you like it around the back anyway. Your pussy is taped up to prevent him from accidentally using the wrong hole.”

It’s true, you’ve always had a thing for anal, and boys love to brag when they get together.

“Okay, it’s go-time! Enjoy! Or at least try not to get dead or anything. I’d hate to have to find another Bitch straight away.”

You struggle against the restraints. “Noooo! Please, Fran, don’t!”

Fran produced a rag and dampened it with something from a bottle she had on hand. She rubbed it onto your buttocks. Buster immediately became interested and started getting an erection. Oh God, it’s huge. You’re in big trouble.

“Yes, I told you he was a big boy, right? You must be drooling about now. Am I right? I’ve seen bigger, but he’s right up there, and soon he will be right up you! Boom-Boom! Can you guess what quality his Sire was selected for? Oh yes, the bottle contains something to simulate a bitch in heat. If the rumors about you in school were even half true, you probably didn’t need the bottle’s contents! Buster will quickly lose the need for it once he gets a taste for you. Rest assured. He’ll just come to enjoy you at his pleasure, I mean FOR his pleasure. Fuck it. You know what I mean.”

Fran leads Buster behind you, gets a squeeze bottle, and dumps some lubricant into your asshole. She considers it a bit, then dumps in the remainder of the bottle’s contents.

“Oh shit, I almost forgot! I’m not completely inhuman. Hopefully, this will make the first couplings easier for you.”

She pulls out a remote control and turns on the bullet vibe taped inside your vagina. You jump a little. It’s VERY powerful and sends a jolt through your clitoris. Buster mounts you and begins to prod inexpertly around your ass.

“Sorry, babe, he’s still inexperienced. He’ll get the hang of it. There you go, Buster, let me help…right there…in you go!”

You scream the roof off! It feels like you’ve just had a thick hot salami rammed home into your ass all in one thrust. He did not ease into you; he just thrust into you, and that knot hurts how it stretches you. You start to try and pull your hips away, but it just sets Buster off like a maniac, and he begins humping you.

“Yeah, you see, I said you should have kept that butt plug in your asshole for a bit longer. You tightened back up while we were talking. Well, I was talking anyway.”

Through a cloud of pain, you see Fran holding a stopwatch and clipboard for some reason. Buster is driving you like a wild animal. You know his knot must surely be close to tearing you. There’s no chance you can force that knot out without injury. You can hear yourself grunting like an animal with each thrust. The pain has leveled out despite his immense size. Speaking of which, he must also be twelve inches long and thick. You can feel him in you around the depth of your navel. Suddenly, you feel your guts flood with hot liquid and cry out. You’ve just had a beast unload its semen into you! Fran jumps in with some commentary.

“Good boy, Buster, four minutes for your first time. That’s a good boy!”

You start trying to work your hips to get Buster out of your ass now that he’s done his business. A deep warning growl stops you.

“Oh no, it’s not finished yet, babe. You’re joined with him until he finally loses interest, and his knot goes down. That can be five minutes or fifteen minutes. The longest I’ve known was over fifty minutes! You’ll never find a man that good. You’re gonna love it here!”

Now that Buster isn’t thrusting into you, you have settled into a dull, throbbing pain. It’s bearable. You lay motionless to avoid triggering another round of thrusting. You cannot decide if it’s his bone deep in your guts or the huge stretching of his knot that is the main challenge that you’re dealing with. Fran starts up again.

“Well, while we’re waiting, I may as well explain my operation in more detail!”

You think that Fran is either happy or insane. She comes across as one of those evil cartoon-style movie villains.

“Well, this clipboard is where I record everything. It goes to the customer and is also used by myself to improve my operation. Over time, I can use selective breeding, for example, to breed the dogs larger, which I know you like, last longer, and have a higher sex drive. Buster here is twelve and a half inches from tip to behind the knot, but I bet I don’t need to tell you that!

“His knot is almost four inches in diameter a the widest point, so he’s not coming out of you by accident. He’s big, but not the biggest I’ve bred. My last trainee was my biggest boy ever, a real freak of nature, and so was the lady who ordered him. She wanted the biggest of the litter and paid for it. He was also the last boy my last Bitch trained. I told you she was worn out, didn’t I?”

Suddenly you experience cramping in your stomach and ass muscles as they involuntarily try to force the massive intruder back out again. Buster responds and begins humping you again. You put your head down and brace for the pounding again. Buster sets a more even but faster rhythm this time, and soon he has you whimpering. You lose control of your bladder and urinate all over the bench.

“Oh, good boy, Buster! He’s going for another round. I think the customer is going to be very pleased with him. Speaking of the customer. Have you guessed what Buster is short for yet? AssBuster, of course! The customer is a very wealthy and successful business owner. She was one of my first customers when I started up and is very happy with her boy. Buster isn’t for her, however. It’s for her daughter, who turned eighteen last month.

“Buster is her birthday present! What an awesome mother! She asked a dominant, aggressive boy to own his Bitch and look after her. She also asked for the largest boy left in the litter. She wants something special for her daughter!”

Buster has finally stopped humping again. You tentatively test to see if you can feel his knot going down, but no luck yet. You’re no longer feeling much pain, just a numb throbbing fullness. Fran gives you and Buster a drink of water.

“Five minutes for round two! That’s good. Anyway, what happens after this is that tomorrow you will be fucked a few times like this again. If all goes well and Buster is getting the hang of things, you will be kept together the day after for Buster to take you when he wants.

“Like I said earlier, once he knows that you’re his Bitch, it’s best just to let him have his way. If you don’t, he will get more aggressive and take you by force. He’s training you just as much as you’re training him.”

You try to push the thought away but cannot help yourself. That big phallus resting in your gut is starting to feel nice. You’re fully worn in and stretched out inside now. Where before, Buster’s huge cock was pressing and hurting, now it feels more like just pleasurable pressure spots. For the first time, you notice that bullet vibrator going off inside your vagina. You writhe around on the bench a little to try and position him inside you a bit deeper. What are you doing? Buster slips an inch deeper, and you groan, unable to help yourself. That felt good. Buster responds again and starts up another round of thrusting.

“Fuck yeah! Round three! This boy is really special Good thing I packed your ass with lubricant up your colon! Thank you, Fran, you’re awesome! It’s okay, I know. You don’t need to say it.”

You try to fight the urge, but it’s hopeless. Your primal instincts are taking over, and you start pushing your hips up to meet Buster and try to get him deeper, grinding your hips to feel him better. Earlier, you were whimpering, and now you’re moaning. You can’t help yourself. God, it feels good. That huge phallus in you now has a bit of looseness around it so that it can slide up and down more. You start trying to hump Buster back as hard as he’s doing it to you.

“Oh my God, you filthy fucking whore, you’re going for it! Really going for it! You’re already enjoying this. All the stories about you in school were true!”

You’re losing control. You barely even care now. The mixture of shame and physical pounding is driving your mind wild. Buster starts a faster rhythm. Your ass now feels like it has a jackhammer going in it. It makes an obscene ‘sloshing’ noise in your guts as his cock churns up and down your ass and lower colon, full of lubricant and dog cum. It sounds a bit like when you use a plunger on a blocked drain. It’s the most pleasurable thing you’ve ever felt in your life. You start moaning random obscenities as they come into your mind.

“Oh fuck yeah, Buster, harder boy, oh fuck yes, really fuck me up, God, I wish I could get you deeper!”

Then it happens, and the orgasm hits you like a train. You convulse and spasm over and over with each wave of the orgasm.

“I’m fucking cumming! I’m cumming!” you keep yelling it out like Fran can’t tell.

Speaking of whom, Fran is squatting in front of you, masturbating herself to orgasm. As you can feel the spasms easing, Buster unleashes his load into your belly again, triggering another convulsion. This time, Buster is finally exhausted and collapses on your back. He’s heavy. You don’t even try to see if you can slip him out of you. You don’t have any strength left anyway.

Five minutes later, you feel your grip on Buster’s knot loosen, and he slips out, causing you to cry out one last time and spray a stream of lubricant and dog semen. The air rushes into your gaping asshole to replace the huge cock, and your battered anus begins closing and tightening back up. You estimate that your orgasm was ten times more powerful than the best you’ve ever had. As you cool down from your lust, you feel shame returning now. You weren’t just fucked by a dog. You fucked him back.

Fran stands in front of you with a very wet patch around the crotch of her pants. She enjoyed the show, it seems. “You fucking whore! You were knotted with him for thirty-eight minutes, and you enjoyed it. I thought it would take even you a few more fucks to let your primal urges take over. Well, Buster enjoyed it, too. Well done!”

You ask if she can let you go now. You promise not to tell anyone if she lets you go. After all, if you told your story, people would discover you enjoyed an orgasm with a dog.

“Can’t do that, babe. Give it a good shot first. Now, here’s what we do. There are two ways this can go. You cannot escape from your kennel here. The walls are soundproof in both this and my other training room. I’m going to unstrap you, and you have free time. You have the toilet and shower/bath over there. TV, video player, magazines, and books. I have here a taser if you try anything. Plus, you cannot leave through the door because only I have the code to unlock the keypad and disable the booby trap. Give me trouble, and I’ll have to chain you up like a bad Bitch, your choice.”

You take the easy option, thinking it better to observe your situation first and look for weaknesses or devise a plan.

First, you have a shower, and you’re still cramping up occasionally and squirting out what remains of the lubricant and semen. You look around and, indeed, find no way out. The climate is air-conditioned to deal with the Queensland heat. Apart from the facilities already mentioned, you also find a station on one of the walls containing a douche to clean out your holes and a pump with a long silicone hose that pumps out the lubricant. This is obviously where Fran prepared you when you were drugged earlier. There is even an exercise bike in one corner to keep in shape.

At seven PM, a panel next to the door slides open in the evening, and Fran puts your dinner on a tray. Also on the tray is a home burnt DVD labeled ‘Buster’s Bitch.’ You put it in the player and see a video of your full session with Buster. The room has cameras, then. You cannot stop watching. You watch yourself struggling to take Buster through the first phase, learning to tolerate him In the middle, and then losing your inhibitions to uncontrollable lust.

Against your will, your vagina begins to get moist. Watching the look of bliss on your face, you remember what it felt like having that huge cock plunging up and down in your belly. Your hips are thrusting up to meet him in uncontrolled lust at the end. The look on your face is like you’re in heaven itself. In one camera angle, you can see your belly pulsing with the cock going like a piston inside you, making an obscene sloshing noise.

Your double orgasm looks like someone is having a seizure. Waves of spasms strike your body. You feel a pang in your stomach when that big thick cock pops out of your asshole with the still slightly swollen knot. How did you take that monster for so long, navel deep, without being injured? You reach the end and realize you’re stroking your clitoris, masturbating. You quickly stop in shame.

What happened to the previous Bitch? What does ‘worn out’ mean?

****

13 February 22

Fran put some breakfast through the slot and said you should prepare for later.

“The Butt Plugs are in the trunk near your bed. I advise that you loosen up before Buster comes around later. Foreplay isn’t his strong point, as you may have already guessed! So best that you prepare yourself, but hey, it’s your asshole that will get torn apart if you don’t! You can get lubricant from the pump dispenser on the wall. See you in a bit! Are we still friends?”

You decide it’s best to get yourself prepared. You know that Buster will damage you if you don’t. The trunk that Fran mentioned contains a few slender bullet vibrators like the one that you had in you yesterday. There is also a set of butt plugs shaped like eggs, with retention chains in case they go the way inside past the base? As a nurse, you recognize they are made from soft medical grade silicone so soft that you can push a finger into them.

They are made for comfortable long wear and size training. The plugs start at two inches wide at the widest point and go up in half-inch increments to an eye-watering five-inch-thick monstrosity. That five-inch monster must weigh more than a kilogram. You pick out the two-and-a-half-inch version, weigh it briefly, and replace it with the three-inch plug. Fran did get one thing uncomfortably close with her jibes at you yesterday.

You are known amongst your former male partners for having quite the anal fetish, and you are well worn back there. Lucky for you, as that four-inch knot would have torn your sphincter muscles if you already didn’t have a bit of wear back there. You lube up your asshole, pushing the soft silicone hose way up your lower colon, and start pumping the lube into yourself as you withdraw the tube.

Your hole is sore from yesterday, but the three-inch plug slides in. You lay down to wait, feeling the lubricant packed into you pushed deeper up your colon from the plug. For now, you plan. Do you not know what Fran may do? You decide to bide your time and look for an opening. When the time comes, you promise to fuck that loopy bitch right up!

“Ding-Dong! It’s Australia Post. I’ve got a huge twelve-and-a-half-inch cock here for you! Only joking. It’s just me! I’m joking about being Australia Post, not about the twelve-and-a-half-inch cock. That’s real. Boy, do you know it’s real!”

You tell Fran to fuck off and just get on with it.

“Yeah, that’s the spirit! Eager, I like eager! Okay, I want you down on all fours over the mounting bench. No funny business, or you get tasered. Just comply, and you’ll have fun like you did yesterday.”

You comply.

“Good, here I come, ready or not!”

Fran comes over to you, taser at the ready. Soon you have bound into position again and have your vagina taped so Buster doesn’t get used to using the wrong hole. Fran pops out the butt plug and gives a fake gasp of shock.

“My oh my, you didn’t bother to start conservative, did you? You did see the smaller ones. Then again, they did say that you let half the school Rugby team have a go back there!”

It wasn’t half, but it was a few. You cramp up and squirt a stream of lubricant out of your ass.

“Good girl, you got yourself cleaned and ready, didn’t you? Okay, I know you’re eager to get going.”

Fran brought Buster around behind you. This time she didn’t need any bitch in heat pheromone. He immediately got excited and mounted you. Fran had to help him find your hole again. Buster then thrusts forward and down with his full weight and power. You arch up to meet him. His knot catches on your anus momentarily. You writhe around your hips and relax and clench your anus, trying to get it in. It soon enters you, and all of the nerves in your asshole explode as they stretch out.

The other end of his phallus plunges suddenly down to its spot under your navel. You let out an involuntary groan, “Oh fuck, that’s good!”

Buster gets to work, and you respond by meeting his thrusts with your movement to increase your pleasure, which is already just about blowing your mind. Your guts, being packed full of lubricant, are already making that disgusting sloshing noise as it’s churned up inside. It does sound like a plumber trying to unblock a drain.

“You whore! You’re already going for it this early! It took my last Bitch weeks to give up and enjoy it finally. We eventually wore her out, though.”

You feel the first orgasm coming in hard and let it wash over you while Fruitcake Fran cheers you on. Buster increases the savagery of his assault on you as he reaches    his climax and lets his seed go into your gut. The full length of your anal canal is nice and loose now, which lets Buster slip slightly deeper into you. You groan in pleasure. When he first got his cock into you yesterday, you thought he would rip you apart and injure you badly. Here you are now, secretly wishing he was a bit bigger!

“I bet a whore like you now wishes he was a bit bigger! Right? Right? I’m right, aren’t I? Don’t worry, I’m expecting BIG things from the next litter, considering who their Sire was.”

What the fuck? Can the Fruitcake read your mind? You thought yesterday that the Fruitcake was like the stereotyped movie cartoon villain. But now you think she is more like the movie ‘evil mad scientist’ stereotype. Oh God, that feels good! A wave of new pleasure washes over you as Buster shifts his weight and moves inside you. You grind your hips around and try to clench and relax your anus to pleasure Buster and get him going again. It used to work for the Rugby team and works here too.

Buster soon starts humping you again, churning your rectum and guts. Your extra looseness now means Buster has a nice room to thrust about five inches up and down in your ass. The deep throbbing ache in your gut on the thrusts forward combines with the tingle of the nerves in your asshole as he pulls back and stretches your hole with the knot.

This is all going off in you like a jackhammer, and it causes you to start crying out in pleasure. You convulse into your second orgasm. Still, Buster is hammering you and has loosened you inside a bit more. This allows him to increase the ferocity of his assault even more. You feel the next orgasm almost immediately, starting where the last left off.

You throw your head back and start screaming any obscenity that enters your mind, ‘Fuck me harder, Buster! Oh fuck that’s good, fuck my ass until I pass out!’

The Fruitcake is masturbating. Good for her, the fucking nutter. What you’re experiencing feels ten times better.

Buster finishes off by dumping another gut load of semen into you. Then he slides off and turns around, rotating his cock inside you, and faces the other direction. You feel his knot starting to loosen.

“Noooo!” you blurt out.

You try to stimulate his cock with your ass muscles again, but he soon pulls out with a ‘plop’ noise and wanders off. Your empty asshole fills with air, and you clench spasmodically and squirt semen and lubricant.

“Ohhhh yeah! I’ve been trying to work on that! They never seem as interested in the morning as they are in the evening. In the morning, they just like to fuck you and leave you. Just like men, LOL! Maybe I can breed that out. Maybe it has something to do with the morning hours being traditionally the time for them to hunt?”

What sort of person says ‘LOL’ when they talk? You remember that the Fruitcake had the highest marks in your school. Thank God for the fruits of our education system.

You recall the school headmaster saying, “We expect great things from our Fran in the future.”

You start giggling at the memory. If only he could see her now.

“Hey! What the fuck’s so funny, huh? Is this some joke that only whores understand? Anyway, hate to leave you in heat like this, but you were still knotted with him for twenty-five minutes. Buster and I are going to make a tree for now. Got shit to do!”

You’re still in a daze, pathetically wiggling your ass in the air, hoping Buster may have a change of heart and mount you again. Fran loosens your restraints and leaves. Finally, you get up, still leaking lubricant and dog semen out of your asshole, which doesn’t seem to want to close up just yet. You shower and drop on the bed to rest.

“Nap time!” Comes out of the room’s PA speaker.

That bitch is really starting to piss you off. How often does she watch you on the cameras, you wonder? You are woken up for lunch, delivered through the hatch.

***

“Buster is having his afternoon nap now. He’ll probably be back to rape your ass again this afternoon around 1800 hours. That’s six PM for you non-military types!”

An hour before the time that the Fruitcake mentioned, you decided to get ready again.

You clean yourself out and re-lubricate. You push the three-inch butt plug back in, not because you need it to help loosen you before Buster mounts you. Quite the opposite. You’re still loose from this morning and can barely squeeze your anus closed. This time the butt plug is more about holding the lubricant inside to work its way in deeper. Buster has done a number on your asshole in just the first two sessions.

The primary source of your pleasure when he fucks your ass comes from that giant four-inch knot stretching and pushing against your anus and lower rectum. It stimulates all the sensitive nerves around your asshole. That knot is also over-stretching your muscles back there; you’d need at least twenty-four hours to tighten back up fully, but you’re not getting anywhere near that relief.

“Ding Fuck’n Dong! A boy here wants to make slow passionate love to your butt hole! No, only joking. He wants to rape you and rip your ass apart again. But you love it!’

You assume the position without being asked. By the time the Fruitcake has tightened your restraints, you’re already involuntarily moving your hips up and down in anticipation of the promised pleasure your brain knows is coming. This time Buster finds the hole first go. Your looseness and lubrication almost work against you. His full cock bottoms out in your anal canal in one hard thrust, where his knot expands fully and locks him inside you.

That first thrust knocked the breath out of you a bit. But soon, Buster is humping with everything he has. You have barely tightened up inside from this morning, which allows his cock to drive a few inches deeper, and each back pull stretches back your anus by an inch as the knot tries to pull out and can’t. The pleasure is monumental. The looser you get inside, the harder he can fuck you, and the better it feels.

You arch your back slightly and bend your head down to look back between your breasts and see the end of his cock going an inch past your navel. You can thrust back as hard as you can against the restraints and see that you can get his cock two inches past your navel.

“Yes! Deeper!”

You then pull forward on each of Buster’s back strokes to allow the knot to stretch your anus back a little further. You orgasm strongly. Buster follows a few minutes later and rests heavily on your back. You feel his huge cock pushing against the padding under your belly. He’s quite literally impaling you to the bench through your asshole. The Fruitcake gives you both a drink to replenish fluids.

You start working your hips to get Buster interested again. This time, Buster finds a new position on you. Instead of standing over you with his legs on either side, he puts his front paws over your shoulders this time. He uses the grip to get solid leverage on you and drive you harder.

You almost instantly orgasm again from the savage pounding this beast, one of the largest dog breeds, unleashes on your body. He drives you all through your orgasm while you convulse on the bench in waves of almost unbearable pleasure. His thrusts drive your hips down onto the bench and scrap your clitoris on the padding, and the orgasm won’t seem to quit. It’s almost becoming unbearable. The waves of pleasure are so strong that it’s almost too much, and you start feeling light-headed, as if you will pass out.

You are thrashing around and grunting and squealing like an animal. If you had any awareness left, you would have seen Fran masturbating furiously with a big, powerful hand-held vibrator. Finally, Buster lets go inside your gut with another load of semen and rests on you again. You slump limply on the bench. Fruitcake Fran appears in front of you, her eyes bulging in amazement. For a few seconds, she is speechless for the first time since you got here. She finally gets some words out.

“Oh…my…God. Oh…my…fucking…God! You are not just a whore or a slut. You are a sexual beast. You are insatiable. And you’re really, really, really hot to watch! God, I’m glad I found you in that shopping center. You’re happy I found you in that shopping center, too, right? It’s okay. You can thank me later!”

She may be a nut-job, but even they are right sometimes. You are becoming a sexual beast. The conscious part of your brain is trying to control your body. Still, underneath, there is some unconscious, perverted, primal, sex-driven portion of your brain that is winning. The reasoning part of your brain suddenly realizes that your body is writhing under Buster’s weight and trying to stimulate him into action again.

Your reasoning half tries to intervene but badly loses the fight. Soon you are grinding your hips, clenching, and working your anal muscles along Buster’s shaft. He plants his back legs, drapes his front paws over your shoulders, and begins hammering you for the third time this session. His attack is brutal. If it wasn’t for how loose Buster has made you inside and how packed with lubricant, you think he’d have torn you up inside and caused you internal injuries by now.

With that thought in your head, you suddenly have your next orgasm wash over you, and you voice obscenities, “Ohhh yes, rip me open, Buster! Tear my fucking asshole! God, it feels so good!”

You look under yourself to watch the cock moving your belly. You orgasm again, and you pass out. You awake to the Fruitcake splashing water on your face.

“Wow! You wait until you see this last part in your homemade porn video later!”

Buster is behind you, facing away, waiting to un-knot himself from you. His cock is pulled back behind him, still locked in your ass.

“Congratulations! Fifty-one minutes coupled with Buster. He has some real staying power! He outstayed a depraved whore like you, and that’s quite a feat! You wait until you see the last part of the video tonight. It’s hot-hot-HOT!”

You’ve never been fucked until you pass out before. You thought that was just fairytale and cheap romance novel bullshit. Apparently not. All you need is to be fucked in the ass by a Great Dane. Simple, any woman can do it. Like yesterday, your dinner arrives with today’s homemade porn DVD. One thing is certain. No one could watch this and claim that you’re not enjoying yourself. You get to the end and watch the part the Fruitcake thought was hot-hot-hot.

You watch as Buster fucks your unconscious body for at least four minutes before he finally finishes off inside you. At least Fran had the decency to lift your head by your hair to see that you were still alive and breathing before letting Buster continue having his way with your body. That hidden primal, perverted part of your brain wins out, and you start masturbating during the video as you relive how it felt.

*****

14 February 22

“Good morning, Middle of Nowhere Queensland!”

For fucks sake, what is wrong with that sick bitch? Seriously.

“I got that from that movie I watched last night, Good Morning Vietnam. It’s about this radio guy….”

You lose your temper and throw last evening’s dinner tray at the door. “I know what it’s      about, you fucking fruitcake!”

“Ohhhh, someone’s grumpy and needs a good hard fuck up her ass to calm her the fuck down! Wait, Fruitcake? LOLZ! That’s a good one! Anyway, I’m coming in. Today’s a special day. You’re gonna love it.”

You get prepared over the bench ready, lubricated, plugged to hold it in, and the tape over your vagina.

“Oh no, you see, that’s why today is special! Both you and Buster have made spectacular progress. This means we can move the training up to phase two. Already! From today, you two love birds will be living together as a happy couple! You can knot together any time you want now, which will be a LOT! And anytime he wants it.

“As I’ve said, letting him do you is best. Keep yourself prepared and ready, and you’ll enjoy yourself. You don’t want to end up like Karen. So, I’ll leave you two to it. Cao! That’s Italian!”

Who the fuck is, or was, Karen? Anyway, you have more pressing concerns. Buster is    looking at you funny. He’s squatting on his haunches and licking his lips in what must be a dog’s way of looking lecherous. Now that you’re not restrained over that bench, you can see this monster’s true size. He’s big, even by Great Dane standards. His head pretty much comes up to yours. When he stands, which is what he’s doing right now, his back comes up to the bottom level of your breasts. He must weigh sixty kilograms, about the same as you.

You decide that it’s time you take control of the situation. “Sit! SIT! Bad dog! No! BAD…DOG!”

He lopes over to you and grapples you down to the floor with his front legs and all his weight. You end up on your ass with him on top, trying to rape you. You begin to struggle. He stops and stares at you and gives a low growl. Okay, the Fruitcake may have a point. You roll over, push out the butt plug keeping you lubricated and let him have you.

Thirty minutes later, you’re face down on the floor, almost comatose from the orgasms you just had. Not being restrained allows you way more freedom to work together with Buster and increase the pleasure, as does having your hands free to use on your clitoris at key moments.

He fucks you for two more sessions over the day and evening.

*****

15 February 22

This afternoon, for the first time, you initiated the fuck session yourself. You couldn’t wait for him to ravish you any longer. You got down on hands and knees before him and wiggled your ass at him until he mounted you hard.

Over the PA system. “Good girl! Teach him that dirty whores want it all the time. Well done!”

You’ve given up caring. You’re doing this because it feels good, and it’s not like you have anything better to do.

He also fucks you today for three sessions.

*****

16 February 22

It’s another three-session day. A routine has emerged. Three long sessions a day keep Buster sexually satisfied.

*****

26 February 22

Today marks two weeks since you started here. There’s no way of getting around it. The fucking is blowing your mind. You’ve admitted to yourself that you love this and will have to keep doing it even when you leave. That perverted hidden part of your brain has told the rational conservative part to go fuck itself. It did. You haven’t heard from ‘Miss Rational’ for a few days. If only the same could be said about the Fruitcake.

Today, Buster was fucking you beautifully when suddenly his knot stretched open your asshole and popped out. He pounded it back into your worn hole and kept going, then a few minutes later, the knot popped out again. By the end of the session, his knot was plunging in and out of your asshole freely. It feels sensational having your anus ripped open four inches over and over, and now he’s free to thrust you with strokes twice as long.

Deeper and harder. The downside is that you can no longer knot with the Great Dane. You miss the intimate feel of being joined to your master through your asshole until he decides to let you go, but oh God, having that knot plunging in and out made you orgasm hard!

There’s no gentle way to put it. Two weeks of constant extreme ass fucking by Buster, without any time to ever let your ass recover, is wearing your entire anal canal out rapidly- especially the anus where that knot has been doing its work. When relaxed, you can close your asshole up, but the muscles are weak, and when you bend over, your anus gapes open by itself. You don’t care. It feels too good.

*****

08 March 22

It’s been over three weeks now that you and Buster have been enjoying each other. Your anus has finally given up completely. The relentless pounding of that knot through your hole day after day without any chance to recover has permanently left your asshole gaping open an inch wide. You should be bothered by this, but lying there on your back, feeling you’re open and worn-out hole with your fingers, causes your arousal as you think about the beast that did it to you and how much pleasure it brought you.

The rest of your ass isn’t fairing much better with the inner muscles stretched and weakened to a depth of about fourteen inches. You haven’t heard from the conservative side of your brain for over a week now. The perverted part of you and its quest for filthy pleasure now drives everything you do. You start humping the fingers you have been inspecting the damage to your ass, getting aroused again.

You roll over and call over Buster while holding your ass cheeks apart to let him in with the least obstruction possible. He thrusts into the balls effortlessly and begins driving you hard. Your anus may be ruined, but the nerves around it still function just fine, and soon enough, that four-inch knot is hammering in and out through your broken sphincter bringing a new wave of pleasure. Soon, the first orgasm can be felt on the way. You start uttering the filthy obscenities again.

“Oh yes, Buster, go fuck it harder, rip my hole open even larger. Oh God, that feels good!”

Afterward, Fran speaks over the PA. She’s been quiet today for some reason. What day is this? Maybe this is the day she goes to town to get supplies.

“Holy shit, Batman. Look at that worn-out asshole! That’s so hot. Buster has done a number on you! AssBuster by name, AssBuster by nature. To think a woman could be so perverted that she has enjoyed it being done to her. I know I’ve enjoyed watching it being done to you! He’s happy, you’re happy, I’m happy, the customer will be happy, everyone’s a winner! LOL!”

You don’t even bother getting riled up by the nutter these past few days. Buster is still on your back, and you can feel him getting ready again for another round.

*****

15 March 22

You’ve known for a few days now that Buster’s training is finished, and his new owner is coming to pick him up today. The Fruitcake saw your disappointment.

“Awww, come on, you will get another boy to train almost immediately. Don’t be sad! The next one is just being trained for vaginal sex, so you probably won’t enjoy that one as much! But at least we can even you up by wearing out your other hole, right?”

Buster’s owners are on the way from the airport. The mother is a wealthy American businesswoman who owns a big cosmetic or fashion brand. The dog is for her daughter, who turned eighteen earlier in the year. Does that young girl know she’s about to get fucked in the ass by a force of nature?

Fran has put you on the chain in case you were planning any funny business while she’s distracted by the customers. You weren’t going to do anything anyway. You have a plan. You’ve decided to play the long game here.

The customers arrive. The middle-aged mother is dressed in a classy business skirt. She is quite the figure of a woman. The daughter has the same figure and huge tits but nowhere near her mother’s grace. She sees Buster and calls out, “AssBuster!”

Fruitcake Fran gives them training reports and Busters specifications and statistics, and they spend some time reviewing the details. The mother was one of Fran’s earliest customers, around six years ago.

At one point, Fran calls you. “Hey, babe, show them the damage that Buster has done. That’s a good girl!”

You put your ass in the air and show off your gaping, broken asshole. The daughter groans in arousal. The mother winks at you, lifts her skirt, and shows you hers.

“That’s the result of six years, honey! But damn, hasn’t the journey to this state felt good.”

She winks knowingly at you again. Her asshole is stretched firmly around an inflatable bladder plug at a diameter of approximately three inches. She is obviously totally ruined back there, much more so than you.
Then comes the part you were surprised to find out. Every customer gets to try out their investment. Fran insists on customer satisfaction. She talks to the mother.

“Is she ready? I hope she has been training, or one young lady will have one very busted asshole!”

The mother replies by turning her daughter around and lifting her skirt to show that she has a training butt plug in her ass and declares that she has been practicing. She knows Buster could and probably will do some damage back there. The young woman is excited, eager, and scared all at the same time. She has seen her mother fuck her beast for six years and has seen the results, and she still wants the same for herself. Fran goes on.

“Restrained or free ride?”

The eighteen-year-old answers, ‘Restrained, so I cannot get away.”

She also instructs that the session lasts until Buster is finished and satisfied, no matter what. The Fruitcake packs the young woman’s ass with lubricant, puts her over the bench, and does up the restraints firmly but with a little wiggle room to allow some squirming around. She lets Buster off the leash to do his work. His cock emerges from his sheath, and the mother gasps with her hand over her mouth.

“Oh, God. Oh my God. Buster’s huge! He’s bigger than my boy.”

Fran has a huge, prideful, cheese-eating grin on her face. “This could get nasty, folks, like when the customer had to have five stitches in her vagina from her first ride and still had an orgasm! Ohhhh, that was hot! I’m also a lot better at doing the stitches now, too!”

Buster mounts the young woman and tries to thrust his cock inside. She’s too tight, and his shaft gets stuck halfway down. He thrusts again with all his weight and drives his shaft down to the knot but cannot yet get it in. You can tell that her well-lubricated state is the only reason that she hasn’t already been torn. She is rearing up as far as the restraints allow, with the pain written all over her face. Buster is trying to get his knot in. Still, even in its semi-expanded state, he is having trouble penetrating. Something will have to give to allow him full entry into that tight virgin asshole. Buster begins pounding his full weight down onto her buttocks now.

Despite the pain, the woman cries out for Buster to force his way in. That’s exactly what he ends up doing. With all his weight pushing down, the woman arches her back with bulging eyes and a silent scream all over her face. For a second, you could have heard a mouse fart as we all waited for what would happen next. Suddenly, we heard a dull tearing sound in the silence as her anus gave way, and Buster dropped five more inches into her body to the balls.

The Fruitcake goes off. “Ohhhhh fuck, baby! He’s done it. He’s torn her asshole bigger to get in! That’s my boy!”

The young woman is contorted in pain but still screaming obscenities. “Oh, fuck, mummy. He ripped me open to get in! He’s in. Oh fuck. He’s in so deep!”

She rose as far as the restraints allowed, and you could see the outline of Buster’s cock in her belly. You see her eyes roll back in her head as she passes out. Buster continues to fuck the unconscious woman, rag-dolling her body within the restraints. Each time he pulls back, he lifts her hips off the bench by her anus, and the knot is firmly wedged in her rectum and not coming out any time soon. Finally, he rests on her back after dumping his load of semen into her.

Fran pipes up with some commentary, like usual, looking at me. “Wow, I think Busters is enjoying that young tight hole. You were getting too loose for him, you loose-ass whore bag!”

Fran inspects the eighteen-year-old and declares there’s no bleeding or torn flesh. The damage done to her is that of the sphincter muscles having torn all around her anus to allow the knot in. It’s like when a sportsman tears a hamstring, except here it’s a torn sphincter muscle. Badly torn sphincter muscle, to be more exact. Now that the knot is in and fully swollen to its full four inches, the only way it can come out, other than Buster losing interest, would be to do even more damage than when it went in.

Fran brings the eighteen-year-old back and gives her some electrolyte drink with more special Fran commentary. “It has electrolytes! It’s what young whores crave!”

The mother looks at Fran before glancing over at you, and you shrug your shoulders in what you hope is a ‘Hey, you’re the one buying something from this nutcase, not me’ gesture. The young woman does seem to be recovering her faculties well. Maybe those electrolytes are the business? She is looking around and squirming under Buster’s considerable weight.

“He’s heavy,” she grunts and squirms to get him to move.

He does. Buster starts up a frantic humping again, and the woman squeals. She is so tight around him that little wiggle room is inside her. Buster is so powerful that his humping pulls her entire body up and down, forward and back against the restraints. She’s grunting like an animal, and it’s unbelievably intense for her.

Her Face is contorted, her hands clenched in fists, her toes are quivering, and her entire body goes into convulsions every few thrusts, making her sizeable tits slap around. Buster doesn’t care, this Bitch is tight, and he’s loving it. It looks like the woman is finally starting to loosen up just a little inside, allowing Buster an inch of movement. Eventually, Buster ejaculates into the girl’s belly again and slumps onto her back to rest, pinning the woman to the padded bench. The woman gives her mother a weak smile to say she is holding up.

Buster starts up again; this time, he is determined to make more room for himself. He pins the woman down using his front legs to prevent her from moving under him and to get the most leverage. He begins hammering her with bone-shattering force. With another sickening tearing sound, the woman cries out, and Buster now has a good few inches of free play to thrust in and out and get a true rhythm going. When faced with a hole too tight for him, Buster brute-forced it open. Again Buster savagely thrusts, and again that tearing noise, and he is suddenly freely humping and plunging his cock up and down in her ass with little resistance.

Surprisingly, the young woman is getting her second wind. Despite having half her anal muscles seemingly torn to accommodate Buster, she now responds to his more free-fucking style in her recently loosened hole. Her orgasm washes over the top of her pain, and her mother cheers her on proudly. As the convulsions begin to subside from her first orgasm, she suddenly chains into a second one. Buster has forced her so loose that she makes that familiar ‘plumber clearing a drain’ sloshing noise from her belly. Buster finally empties what’s left in his balls deep into her colon, then turns and climbs off and waits for his knot to go down and release him.

When Buster pulls his cock out, the usual lubricant and semen showers sprays forth. The Fruitcake goes over to inspect the damage. “Ohhhh baby, this one is going to be nasty, me-thinks!”

She produces a speculum and a camera on a thin, flexible tube out of her little tool kit that she carries around. After a good ten minutes, Fran packs up and gives her diagnosis. The eighteen-year-old woman’s asshole is damaged. We can all see that visibly. Her anus is a deformed, loosely open hole from the tearing to the sphincter muscles. Fran also declares that the same fate has befallen the inner sphincter muscles. The good news is that all the lubricant did its job and that, though she is pretty badly bruised up inside, she requires no stitching.

“In a few days, she’ll be perfectly fine! Except her asshole will never fully recover, and she will have to wear a butt plug for the rest of her life! Okay then, will that be cash or card?”

You watch as Fran and the mother settle the payment for Buster and his training. The daughter rolls off the low bench and tries to get to her feet but finds her legs too shaky to walk. She tries again, then gives up and crawls to where you are chained to your bed.

She looks at you and thanks you for training Buster for her. “He’s awesome!”

Fran and her mother are back. You watch the mother and her daughter, now on her feet but walking splay-legged and doubled over, say goodbye and leave. Fran is in full form, like usual.

“Bye! Enjoy Buster! Ohhhh, I just had a thought. Buster will have to go into quarantine in the USA for a month because of the stupid immigration laws on animals! Holy fuck Batman, I hope Buster doesn’t rape any of the female kennel staff! Or if he does, let’s hope someone is there to get it all on video to put it up on the internet for us!”

You realize that Fran is an incredible combination of genius and bat-shit crazy. They often say that the world’s greatest minds always have critical flaws.

You take on your next trainee tomorrow.

The Fruitcake says there is a waiting list. “There is no time for a holiday for us, chop chop!”

 

The End.

 

*This story has been edited by AI to fix spelling, formatting errors, punctuation, & basic grammar, but the narrative and plot have remained the same. Even with the limited editing done here, it doesn’t always mean a story’s narrative/plot flaws are fixed (That’s the author’s job). Also, AI can be inaccurate at times when editing grammar. The opinions/views expressed in this story (and in any comments) are those of the author and do not represent this site. We support freedom of speech. This story has been previously published on other free sites and is now public domain, which is why we can publish it here.