Chapter Text
It wasn’t as if Harry meant for it to happen, it’s just his obnoxious new neighbor was incapable of keeping his dog in his own yard. It wasn’t something he had even thought about before, really. So he can’t exactly say how he wound up here.
-
His new neighbor is driving him crazy. Again. This time having let his mastiff out the backdoor before proceeding to get into his car to speed off to god knows where. And of course the animal gets excited when he sees Harry across his own yard, sticking his nose right in his face and slobbering all over it.
“Ugh, gross, get away,” he tries to scold, pushing at the dogs face. It would help if he wasn’t down at the dog’s level but his flowers needed weeding and it was a good day to be outside so he found himself on his knees in the grass, a direct target for slobber. He had pulled on some gym shorts and an old tshirt but left his feet bare before coming outside. He loves the feeling of cool nature against his toes, the grass tickling his feet in a perfect way. It’s blissful.
But his neighbor’s animal is disrupting his peace.
Eventually the mastiff gets bored of him and wanders off and out of Harry’s mind. As long as he wasn’t being bothered, the dog was not his concern. It wasn’t his job to babysit the neighborhood pets. If it got hit by a car or ran off it wouldn’t be his fault. It would be that of the neglectful owner.
When it happened, it wasn’t something that his brain could completely process fast enough to stop. The heavy weight that thunked onto him from above and the hug of limbs around his sides was a shock. At first he thought one of his friends had sneaked around back to surprise him, tackled him just for a laugh.
But then he felt it.
Something poking against his ass and he could feel the warmth and even wetness through thin material of his gym shorts, more prominent with the fact that he hadn’t pulled on boxers. He didn’t even know this dog’s name but as Harry pulled weeds on all fours, the beast had mounted him and now was humping his doggy erection against his ass with a powerful force he hadn’t expected. Not that he had expected anything in the first place.
“Oh my god! Get off!” Harry shrieks and wiggles around to push the dog off. “Go home!”
Harry gets up and quickly runs up to his house, leaning against the closed door once he’s made it inside. He’d never been humped by a dog before. He reaches down and squeezes his dick, moaning but ashamed at himself for being just a little stiff from the incident. There was still a damp spot on the back of his shorts from the dog’s penis and he ran his fingers over it experimentally.
“Its just because it's been so long since you got laid,” he tells himself in a montra, “You’re just horny and missing the weight of a body on top of you. That’s the only reason you got hard.”
He breathes through it but still ends up jerking himself off during his shower later. If the images slip to the events of the afternoon a few times, he pretends it doesn’t happen.
-
It happens again the following day.
Harry was spreading mulch around a bush in his yard, work gloves on and down on hands and knees. He had even worked up a bit of a sweat. His knees were set wide in the grass, bouncing his hips along to his music and enjoying the feeling of his balls shifting against the light fabric of his shorts. He loves being naked, loves having his junk hanging out free, but it wasn’t exactly appropriate to garden naked when the houses in his neighborhood were so close together. This was the closest he could get.
His earphones were in his ears so he didn’t hear the dog approach, this time startled by a nose pressing eagerly against his perineum and up against his crack, the warm moisture of breath and tongue following quickly after. A small shriek left him as he jumped a little, yanking one earbud out and whipping his head around to view the situation. All logic was telling him to stand up, to pull away from the assault but he had already been half hard from his own hip movements and the dogs mouth and nose felt like the ghost of a human building up to rim him. It caused his dick to twitch and his hole to clench against nothing.
God he could really go for being rimmed right about now.
He glanced over his shoulder and then surveyed the yard. He didn’t see any of his neighbors or the dog’s owner anywhere in sight.
“Fuck. Doesn’t your owner give a shit about you?” Harry asked, reaching back to rub the dog between the ears. It whined and circled him before coming right back to his ass, pressing his nose into him again before trying to mount.
“Woah there,” he half raised up to stand on his knees, dick standing out from his body to tent his thin shorts. The mastiff was so worked up, bouncing around him as he circled now, sniffing around his hips and then around to his crotch where he started to lick his erection right through the fabric.
“Oh my god,” Harry moaned, a sick streak of guilt jolting through him at how much he enjoyed the feeling. The dog just got more excited in front of him and Harry had to reach down to squeeze his dick to keep from thrusting up.
“Come here, do you have tags?” Harry cooed to the dog, grabbing his collar and shifting it around until he could read the etched writing. “Louis Tomlinson? That’s a strange name for a dog. Are you Louis?”
He baby talked to Louis and ruffled his short silky fur behind his ears. “Why are you out here on your own so much? Want to come inside?”
He knew he was no saint for the choice he was about to make but after another thorough look around to make sure there were no witnesses and adjusting his dick up against the waistband of his shorts, he stood and headed towards his back door. Louis was quick on his heels, bouncing around and panting excitedly as they went.
“Yeah boy? You want to come inside? You want to have some fun?”
Harry made one more check towards his neighbors house before letting the dog slip in, locking both the storm door and the main door just to be sure. He went to his kitchen cabinet and rifled through for some peanut butter. That’s what they always made jokes about in movies and such, right? Putting peanut butter on dicks to get dogs to lick them?
The peanut butter jar was heaving in his hand as he headed upstairs, surprised when Louis pushed past him and ran directly into his master bedroom. Well that was weird. He was sitting back on his haunches in the center of the room right off the end of the bed when Harry caught up, panting hard with his tongue out. It was hard to miss the pink tip of the dogs penis peeking out from his sheath, bouncing lightly with the movements of his heavy pants that rocked his whole body.
“Fuck. Why is that hot?” he muttered to himself, dragging a hand down over his face. He closed and locked his bedroom door and sat down on the end of his mattress right in front of Louis.
“Hey boy, are you horny too?” and fuck. He was talking to a damn dog. Louis responded though, sticking his nose right into Harry’s crotch without hesitation, licking his erection through the material with his dick restrained in the elastic of his shorts against his stomach. Louis nuzzled his nose in, getting underneath his shirt where his tongue found the bare tip of his penis sticking out from under the waistband.
“Oh fuck!” he hissed out at the shockingly good feeling of bare textured tongue against his most sensitive organ. He wiggled out of his shorts before he could let his conscious catch up to him, moaning loudly when the long wet laps of the dog’s tongue covered the entire length of his prick.
“Fucking hell!” he massaged at the dog’s ears on instinct as he would grab onto a man’s hair if he was getting head from a guy, his thighs shaking at the sensation. He ripped his tshirt off over his head and parted his legs, every part of him quivering when the tongue ventured down lap at his balls and then nose up underneath them. It felt so odd for his balls to be manipulated in the way that they were, the soft but also prickly fur of his snout such a strange feeling.
The tongue was so close to his hole he could feel his crack getting wet and god he wanted it. He dropped down to the floor and got on his hands and knees, urging Louis around to his ass and hoping that he would get the idea and go back to what he had started in the garden. It took a few moments but eventually a nose was pressing into his crack and he groaned out deeply. He dropped to rest his upper body against his shoulders on the floor and reached behind himself to pull his cheeks apart, writhing against the strangest rim job he had ever received. He was so hard though, his slit leaking precum in a steady stream and he turned off the part of his mind that would regret this later. He wasn’t making the dog do anything, he was a willing participant, had started it even if they were being honest.
The sudden chill of the air against his wet hole when Louis pulled away was a bit startling and his whole body shivered at the feeling. He had just started to lift his head to see if Louis had lost interest when hard nails painfully dug into his calves where the heavy dog stepped and the solid weight of his body was against his back. It was all happening so quickly but the grip of his front legs just above his hips was so firm that it felt like a warm hug.
“Are you d--” he cut off when he felt the wet poker that seemed burning hot in contrast to his chilled wet skin. It was hard and almost hurt where it hit against his perineum and then the plushy part of his ass cheek.
“Okay,” he started to lift up but the mastiff really was a chunk of solid heavy muscle, “I think we’re done now--” his voice gurgled off in a painful scream because the probe had already found his hole in that short amount of time and penetrated him with no mercy. The thrusts went from nothing ruthless while he was still grasping what was happening, furry hips jackhammering into him while his hole felt like it was on fire with the sudden relentless stretch.
He was screaming with the pain of it, pushing at his front legs and trying to crawl away but the mastiff was just too big, too strong for him to easily get away. Their biology, their bodies were built to hold a mate in plate but Harry never thought that strength would be able to hold a human. His calves were screaming with the deep scratches being carved into them from the dog’s thrusting dance against them and he tried to angle his legs to get away from it.
His face was drenched in tears but he didn’t even notice in his panic of trying to get free and after what seemed like only seconds, the stretch of his his hole around the dog’s penis seemed excruciatingly wide with the next few thrusts and then Louis was nearly still on top of him. Laboured breaths shook the beast’s body on top of him but Harry was frozen still, his own breath held with a sob hitched deep in his throat.
It was something he couldn’t describe in that moment. He was suddenly stuffed so full that his thighs parted further on instinct. His rim wasn’t stretched so wide anymore but the pressure inside his body was so high that his muscles burned in anticipation and aftershock of their brutal beating. His whole body was on fire with every nerve prickling with heightened awareness of the stress his body was going through. He had never felt pain in his life.
Yet…
He was cumming. His dick was jumping up towards his stomach with the force of it, long thick ropes covering his carpet in pulses that seemed to last forever. He couldn’t remember the last time he’d had an orgasm so intense. Actually he knew for a fact he never had. His balls were pulled up to his body so tightly it hurt, scrotum cramping like a charlie horse. But he was still somehow coming. His prostate was being pressed so intensely and continuously that he still couldn’t breathe, face turning red with how long the air had been held in his lungs.
The dog shifted on top of him, trying to dismount and he scrambled to grab onto the front legs hugged around him while his lungs heaved out a heavy sob that left his lungs aching.
“Oh my god,” he sobbed out into the carpet, face pressed there while he used both hands to hold Louis in place. His dick was still hard as a rock and jumping though the spurts of semen had stopped.
“Oh fuck oh fuck oh fuck,” he breathed out in a chant, body and mind completely overwhelmed with what had just unexpectedly happened to him. He didn’t know all that much about dogs but now he knew that knotting actually was a real thing, this dog’s massive one bulbed inside his rim, tying them together.
It hurt. God, it hurt so fucking bad but beyond that was such a euphoric state of overwhelming pleasure that he barely focused on anything else. His head was swimming, the constant pressure on his prostate both uncomfortable and overstimulating at the same time but he felt floaty like he was still fresh off the best orgasm of his life. And really, he actually was.
He loosened his hands on Louis’ legs and then scrambled to grab them again with his mistake as the large dog tried to dismount. He wasn’t able to get a good grip and cried out at the fresh wave of pain that ripped through him when the knot pulled at his rim and put fresh pressure everywhere inside him. The knot was too big for him to pull out and he found himself butt to butt with the dog, knot still snug inside.
And he was cumming again, dribbles pulsing out of his slit in almost painful contractions of his dick. But it felt so fucking good at the same time. His whole body quivering with overstimulation.
He wasn’t sure how much time passed before the knot had deflated enough for the dog to slip out. It still hurt when the bulb stretched his rim but the rest popped right out with a flood of dog cum rushing out behind it. He collapsed onto the floor, his crack sticky and wet with the mass amounts Louis had pumped into him.
His body jumped in shock when Louis started to clean him up, licking long stripes up his crack. It was too much and he tried to crawl away, eventually reaching for the duvet off the bed to wrap himself in.
“Holy fuck…” he moaned out as he starfished out on his floor painfully blissed out. “What the fuck just happened. What. The. Fuck.” He glanced over and his eyes nearly bulged out of their sockets as he saw the massive size of the mastiff’s penis still hanging stiffly between his legs. He reached out a hand and gently gripped it, gazing at the size and weight of it in awe. And it had already deflated from what had been inside his ass. No wonder he felt like he was being ripped in half. Cum was still dribbling off the pointed tip and he ran his thumb over it until the dog pulled away and sat in the corner to lick himself out of Harry’s reach.
He laid like that until Louis’ penis had shrunk and slipped back into his furry sheath, padding around his bedroom curiously like nothing had happened.
“Just like that for you huh?” he muttered and eventually dragged himself up. He wrapped his bathrobe around his wrecked body and opened his bedroom door.
“Come on, let’s get you back outside incase someone is looking for you.”
Louis bounded down the stairs in front of him and waited patiently at his back door with tail wagging. He could hear someone’s voice calling as he got the door open, Louis slipping out around his legs and bounding across his yard with his tongue flying out to the side.
His neighbor was in the driveway that separated their two houses, greeting his dog happily and ruffling his fur, rubbing behind his ears. Harry peeked out to get a better look at them, brows knitting together when he heard his neighbor calling the dog “Popcorn”.
He was just about to slip back inside when he accidentally made eye contact with the man who was young, about his own age.
“Hi!” the man called out, taking a few steps closer, “I’m Louis. I just moved in not too long ago but haven’t introduced myself.” He made it to the steps leading up to his back door and held out his hand to shake. Harry reached out as well, realizing too late that he hadn’t yet washed his hands clean of a mixture of dog and his own cum. They shook hands and Louis gave him a strange look. Harry recognized he was probably acting odd. His knees still felt weak and he was gripping his door knob with his free hand to steady himself. He probably looked fucked out as well, flushed cheeked and blown out eyes for sure.
“Hope popcorn wasn’t bothering you too much… He doesn’t usually run off but when I couldn’t find him…” Suddenly a look crossed his new neighbor - Louis’ - face, a smirk pulling up his lips into a lopsided smug expression. “I’ve trained him well, really well, so he should be a good dog for you any time he wanders over.” Louis winked at him, actually winked, wetting his lips with the tip of his tongue in a less than innocent way. Harry felt himself growing beet red. “Maybe you can come over for dinner sometime and I can show you all his tricks.”
There was way too much suggestion behind everything he was saying now and Harry felt like he might melt into a puddle and die. Louis knew. Louis knew exactly what he had just been doing with his pet. But he also didn’t seem bothered by it. Seemed to be encouraging it, actually. And. Oh god. Louis must have been the one to train him, how the dog knew exactly how to knot Harry good.
“Ibuprofen and a lot of water and take it easy for the rest of the day,” Louis smirked, throwing him another wink before turning to head back towards his house. Harry’s cheeks were burning yet at the same time the thought of it all was making his head spin. He definitely wanted to try that again, would definitely be doing it again as soon as he got the chance. And maybe, if he was lucky he could get Louis to fuck him first to open him up, cum in his ass so Popcorn could seal it in with his knot. His fantasies were running wild. He sank down onto his sofa, robe falling open to expose his crotch, nerves still tingling with phantom pulses.
Fuck yes he was doing that again.