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👀👀 just read your answer to my question and I'm excited to send a prompt 😌 StarkerFestivals is having a starkercest Winter Bingo so I randomly picked one and got Somnophilia. So somnophilia and starkercest 😈

WAAAH I’m sorry this took so long!! But THANK YOU for this prompt I loved writing every moment 😩❤️‍🔥

Warning: Dubious consent -> full consent, daddy kink, incest

Word Count: 4,328

It’s no secret how much Tony loves his boy, his only son from a once successful marriage. Peter was his pride and joy, especially after he’d won full custody over him years prior. Peter was 18 now and Tony had realized a few things as he’d watched his son grow. Tony supposed it was a mixture of being single and practically celibate for so long, having been focused solely on caring for Peter and giving him the best life he could. Spending so much of his time with his son had turned his innocent, fatherly love into something of a monster, something like infatuation and lust when he looked at his beautiful pale skin and dark brown eyes. Tony had had the pleasure of watching Peter grow into himself, watching as his voice dropped and his muscles grew in, as the goofy preteen turned into a mature young adult.

Tony had never intended to let those feelings be known, not to anyone, especially not Peter. He also never intended to act upon those feelings. That’s why he found himself in a precarious position, pressed up against his son’s backside in a hotel bed. They were halfway through a road trip to the Grand Canyon, resting for the night before they spent the whole day driving and sightseeing. Tony had internally cursed the front desk lady when she informed them that the only room available had just one bed. It’s not like he didn’t trust himself to sleep next to Peter, but the separation sure helped.

Tony had been fine up until their actual bedtime. He’d put himself a respectable distance from Peter and closed his eyes tight, hoping if he fell asleep fast enough he could forego the fantasies that usually plagued him before bed. He was wrong, dead wrong, because Peter seemed to have some ideas of his own, completely oblivious to the way his own father desired him. Tony hadn’t realized how weak he was. He couldn’t believe all it took was sharing a bed to get him to throw all of his morals out the window.

Peter was blissfully unaware of Tony’s feelings, full of genuine love for his dad. He loved how close they were and loved how spoiled Tony kept him. It wasn’t surprising when the younger boy scooted his butt back against his dad, wanting to feel his warmth behind him on such a cold night. “So cold in here,” he muttered, already sleepy as he pulled the sheets up to his chin. To Peter, this kind of affection was normal, never did he think the simple act of love meant something completely different for his dad.

Tony’s teeth sunk into his bottom lip to prevent any noises from escaping him. Peter had no idea what he was doing to him. Tony wanted to be a good man, ached to be better than he was, but even he was human. He couldn’t help the wonderful, tingly feeling he felt as Peter settled near, ass pressed to his groin. “Goodnight, sweetheart,” Tony said in return, barely stopping himself from snaking an arm around his son’s waist, keeping him even closer. God, Tony felt like such a creep, but he was in heaven, nose pressed into Peter’s hair and bodies meeting warmly. Tony splayed his hand out over Peter’s stomach on top of his shirt, offering even more warmth. His skin flushed when he felt Peter put his hand on top of his, much smaller compared to his. Tony briefly wondered if Peter knew, if he was egging him on purposely. Tony knew that was a ridiculous thought, but it made him feel a little better, the small chance. His nerves were calmed by the sounds of Peter’s deep, even breathing, a sign that he was slowly falling asleep. It was only when he heard the softest snore come from Peter that he relaxed a bit, pressing him tighter against him, already feeling his cock swell against Peter’s ass.

“Pete,” he whispered, testing the waters. Peter didn’t respond. Tony was trying to stall himself from going any further, reminding himself that Peter didn’t want him in the same way, that touching his son while he slept would be one the worse, more illegal, morally dubious things he’s done. Peter’s silence beckoned, though. Tony had no other excuse to be this close to Peter usually, now was his chance to get a taste of his little boy. Tony made sure to go slow as he pressed on, the hand on Peter’s stomach finding the hem of his shirt, gently pushing underneath it so he could feel his bare skin. He made sure to stay there for a while, drawing invisible patterns on his tummy, hyping himself up for his next move. Tony had never been so close to him before, had never gotten to touch such an intimate part of him— it was driving the older man mad. Tony assured himself he’d gone mad long ago, when he first started imagining Peter underneath him. Tony’s mind was running wild with what he could do, how far he could touch before Peter woke up. His fingertips were centimeters from the waistband of Peter’s sweats, he could easily slide his hand down and touch him where he wanted him the most.

It took an embarrassingly small amount of time to decide that that was exactly what he would be doing. Whatever repercussion waited for him after this would be worth it. Tony pressed soft kisses to Peter’s shoulder, soothing the sleeping boy as he finally took the leap, finally pushed his fingers past his sweats and his boxers. Peter still hadn’t stirred, though his breaths did change, which prompted Tony to stop, just inches from Peter’s cock. A minute passed and Peter didn’t move, so Tony proceeded. His fingers wrapped around his cock gingerly, just feeling the weight of it for a moment, closing his eyes momentarily so he could savor the feeling. Tony stroked at an agonizingly slow pace, knowing he needed to do his best to keep Peter asleep.

Peter let out a soft noise in his sleep, something between a hum and a mewl. Tony trailed a few more kisses up his neck, feeling how warm Peter got against him. Peter was almost fully hard in his hand, the older man letting go briefly so he could push his pants down a little lower, slipping it out from its confines. Tony’s fingers trailed up the length to spread the sticky precome that formed at the tip, eliciting another noise from Peter. Tony couldn’t hide his arousal anymore as he pressed his hips forward, grinding against Peter in tandem with his strokes.

It was the feeling of Tony grinding into him that ended waking Peter up, the situation taking a few seconds to settle in his brain. Peter was still groggy as he started to register the fact that someone was touching him. He almost closed his eyes and let the feeling continue, nearly chalking it up to some vivid dream, though it only took him a moment to realize how real it felt, and another second to realize that the only person who could’ve been doing this was his dad. His dad, Peter realized, was currently jacking him off. Peter’s eyes widened and he gasped, trying to pull away and being forced back into his position with an even stronger grip. “D-Dad?” He questioned. “What are you-“ Peter tried to speak, it coming out quite shaky, stopped by the feeling of his dad’s hand going faster. “Stop,” he begged softly, throwing his head back against Tony’s shoulder and moaning again. The horrible thing was, that it felt good. He’d never been touched by someone with such big, calloused hands, never by someone who knew what they were doing. “Dad,” he moaned again, nails digging bluntly into Tony’s arm and trying to push him off.

Tony should’ve stopped at the first signs that Peter was waking up. He should’ve never let himself get this far. Something about the begging did something to him, made him burn with his need. He wouldn’t be stopping until he got what he wanted. “Keep begging,” Tony whispered, breath fanning over his ear.

Peter’s jaw was dropped wide in a silent moan, breathing harshly as Tony went faster. He couldn’t explain the pleasure and the lack of disgust he felt. It was a terrifying and conflicting feeling. It was hard to concentrate on anything but the fist around his cock, especially when he was still coming out of his sleep and struggling to understand what was happening. “Please, please,” he babbled, unintentionally bucking his hips forward to chase the pleasure. He wasn’t sure what he was begging for anymore, didn’t know whether he wanted his dad a million miles away from him or if he wanted him to keep going, to let his own father give him an orgasm. The thought did make Peter’s stomach turn, but the way his dad was making him feel was undeniable.

“Daddy’s hands feel good, don’t they?” Tony asked softly, feeling Peter shiver against him, the younger boy struggling less and less in his grip.

Peter didn’t say anything, flushing deeply and stopping himself from moving so much, so close to coming all over himself. Instead, Peter nodded his head, silently surrendering to his father’s tirade on his body. It was pointless to fight, Peter realized. He couldn’t break away from Tony’s strong grip on him. Peter wasn’t sure he wanted it to stop, anyway. “Gonna make me come,” he said pitifully.

Tony would’ve kept going, but he had so much more planned for his boy, didn’t want to spoil all the fun just yet. He slowed down his hand and fully let go of him, pulling away so he could climb on top of Peter. “Not yet,” Tony murmured, hands gripping Peter’s sweats and boxers and pulling them down all the way, happy that he was letting him do as he pleased. “I’m not your first, am I?” He asked curiously, leaving Peter in his oversized shirt, Tony’s shirt, borrowed from him because he wanted to be cozy. Tony left it on for a reason, just to be able to fantasize about how cute Peter looked in it.

Tears had sprung to Peter’s eyes when Tony let go, so overwhelmed and disappointed that he didn’t get to finish yet. He was sure he looked pathetic as he stared up at his dad, not putting up more of a fight against him. The question made his eyes water a little more. Was he really going to let his father do this? Peter knew his answer already. He was too curious, in too deep with his acceptance of the situation. “N-No,” Peter mumbled. His eyes widened as he watched his dad take his own shirt off and pull down his sweats, revealing his girthy length and muscular torso. “Dad, I don’t- Uh, I don’t know about this,” Peter pleaded, closing his knees a bit, trying to get Tony to ease off. He couldn’t be serious, that thing would break him in half. Peter had never had something so big inside of him.

“What, are you scared?” Tony teased and reached down to stroke himself, already hard and standing at attention, even more turned on by the mixture of fear and curiosity on Peter’s face. “You know I’d never hurt you, Pete. I love you so much,” Tony insisted, using his free hand to gently pry Peter’s legs apart again, scooting up to occupy the space between them.

Peter was speechless, eyes glued to Tony’s hand as he stroked himself, scared at how his dad sounded, so sure of himself. “I know, but…” Peter trailed off, caught off guard when his dad leaned in to kiss him, cutting him off.

Tony pressed their mouths together hotly, obsessed with how pliant Peter had become in just a few minutes. He could feel the way Peter relaxed against him, feeling the younger boy’s hands grabbing his shoulders for leverage. “Who taught you how to kiss like that?” he purred, diving back into another kiss, this time pushing his tongue into Peter’s mouth, languidly gliding against his.

Peter’s cock twitched as he was kissed, mewling against Tony’s mouth. His dad tasted like toothpaste, the one they’d both used right before bed. “Dad,” he whimpered, feeling Tony’s stubbly face rubbing against him as he kissed his neck. “Daddy,” Peter sighed. It felt strange to call him that, something he hadn’t called his dad since he was quite young, but it slipped out before he could help himself.

Tony felt something close to euphoria when Peter called him ‘daddy’, the older man smiling wide. He pulled away slightly, just to stare at the pretty boy beneath him. “Good boy, you learn fast,” He praised, reaching up to nudge his pointer and middle finger against Peter’s lips. Tony had never felt more in love as he watched Peter obediently open his mouth and suck on his fingers, knowing exactly what he wanted without him even asking. “You’re perfect, you know that?” Tony purred.

Peter flushed at the praise, his tongue swirling around his dad’s fingers. It was starting to get to him, the way his dad was talking. It made his heart swell, in a weird way, to witness how much his dad wanted him. He’d never considered doing something like this with Tony, but his dad was making it easy to give in. Peter pulled off of his fingers and tried to catch his breath, preparing himself mentally as Tony’s hand disappeared between them, finding his entrance and rubbing the spit around the tight ring of muscle, making Peter jolt in surprise. It wasn’t his first time, but it was his first time with someone like Tony. His dad was rugged and handsome, knew exactly what he wanted and how to get it, too smart for his own good. He found comfort in the fact, knowing that he’d be well taken care of, even if this was sprung on him. “I don’t think you’ll fit,” Peter said shakily, eyebrows furrowing as he felt Tony press a finger into him, trying to relax.

Tony looked up at Peter and leaned down to kiss his cheek, curling his finger as it slid into him, pushing it in and out of him. “You don’t think so?” Tony asked with a smirk, already working on getting his second finger inside of him. “Daddy will make it fit, then.”

The promise sent a shiver down Peter’s spine, just imagining how it would feel to get filled up by him. He would never admit to him that it turned him on, hearing that kind of talk. Peter let out a soft moan as his dad scissored his fingers in and out of him, the younger boy relaxing against the bed sheets as he got used to the feeling. “Did you take me on this trip just to do this?” Peter asked suddenly, eyes closing as he felt Tony push in a third finger. “You could’ve just-“ Peter paused when he felt his dad press against his sweet spot, angling his hips to try and recreate the feeling. “Could’ve just asked me,” he insisted.

“No, it wasn’t a part of the plan,” Tony admitted. He knew he’d tapped into something wonderful when Peter chased his hand with his hips, the older man curling his fingers again and pressing up into that bundle of nerves. “You wouldn’t have said yes,” Tony refuted, raising a brow and increasing his pace just slightly, glancing down to see how much precome Peter was leaking, ruining his favorite band shirt. “Had to show you, or you’d never agree.”

Peter couldn’t concentrate on what his dad was saying, being brought so close to an orgasm yet again. “Not many people are into the idea of fucking their dads,” he whined, looking up at Tony pleadingly, hoping he’d let him come this time.

“But you are now, right?” Tony asked with a soft chuckle, kissing Peter again, his heart racing as Peter kissed back. Tony made sure to slow his pace before pulling his fingers out, spitting in his hand to lube himself up. “And it’ll be the best you’ve ever had,” Tony promised.

Peter pulled away from the kiss feeling a renewed sense of clarity, knowing in his heart of hearts that his dad was right. Of course, he would’ve never agreed to this, but he saw the light now. He could see how much his dad truly cared, how much he wanted to love him, all of him. “Be gentle, daddy,” Peter muttered softly, biting his lip harshly as Tony rubbed the tip against his entrance. Peter felt like he was short-circuiting as Tony pushed into him. The stretch felt impossible, and the pace was even slower. “Fuck, dad,” he huffed, arching up into him as he tried to accommodate him.

Tony had a hand on Peter’s hip to keep him steady, while the other guided his cock, doing quite a good job at keeping his cool for how turned on he was. This was the stuff of dreams, he’d never thought he’d get to have Peter like this. “Language,” Tony scolded playfully, getting himself about halfway in before he paused to give Peter time to adjust. “You feel so good, Peter, so tight for me,” he sighed, the hand on his hip moving up under his son’s shirt so he could feel the soft, sculpted muscles.

Peter tried hard to regulate his breathing, one hand gripping the sheets tightly and the other wrapped around Tony’s wrist, the one that was touching him all over, digging his nails into him so he wouldn’t go so fast. Peter finally mustered up the courage to look up at his dad’s face, looking at him with such an intensity that Peter almost had to break eye contact, but he persevered, bringing his hand up to cup his dad’s stubbly cheek. He pulled him down for another deep kiss and only pulled away to say, “Fuck me,” defying Tony’s earlier insistence about his language.

Tony knew, after hearing Peter talk to him like that, he would never be satisfied. How could he be? Peter was his everything, he’d never get enough. It was just too good. Tony obliged before he could respond in words by moving his grip to the backs of Peter’s thighs, pushing his legs forward so his feet could rest on his shoulders. Tony knew this angle would drive his little boy crazy. The older man’s hips pulled back, before snapping forward, setting a harsh pace, one that made sweet little sounds escape Peter with each thrust.

Tony was right about him being the best he would ever have, Peter’s whole body was on fire as his dad started to fuck him, really fuck him, offering no mercy or empathy, forcing his small, lithe body to take him over and over. “Daddy,” he squeaked, voice shaky with the rhythm of his thrusts. He could feel Tony hitting his sweet spot over and over, making it quite difficult to contain himself. Peter tried to grab the sheets beneath them to keep himself in place, the power of the thrusts moving him slightly up the bed.

Tony concentrated hard on keeping a steady pace, soft grunts escaping him at the feeling of Peter’s walls squeezing around him, inviting him in. Peter looked so beautiful with his dick inside of him, an image of bliss and love and struggle. “Come on, don’t be shy, Petey, let everyone know who you belong to,” Tony growled. He loved every noise that came out of him and wanted so much more, wanted for Peter to scream and declare his devotion to him.

Peter felt like his brain was mush, not able to form coherent thoughts, clouded completely with pleasure and small spikes of pain that only made him more sensitive. “Daddy- I belong to daddy,” he babbled, throwing his head back when he felt the coil in his tummy start to tighten already. If Peter was being completely honest, he didn’t want Tony to ever stop, to prolong the amazing feeling inside him, but he’d been denied two orgasms already. He knew he wouldn’t last long doing this. “Would you be mad at me if I came, daddy?” He asked softly, turning up the sweetness for Tony, which he knew he would like.

The question made Tony wonder if he could make Peter come more than once. He supposed it was the kind thing to do, to assure his son that no, he wouldn’t be mad, especially after being so mean and preventing his earlier orgasms. “No, baby. You can come,” he said with a smile. “I’ll have to reward you for asking first,” Tony praised.

Peter felt a wave of relief hit him when he got his dad’s permission to come. “Gonna ruin your shirt, I’m sorry,” he huffed out, mere moments before the younger boy was tensing and shooting long strands of come up his chest, spattering all up his shirt and the band logo on it. “Fuck,” he moaned, looking down at the mess he’d made and then up at Tony. His dad didn’t stop even as his orgasm rushed through him, making him sensitive to the stimulation. Peter had never pushed himself past one orgasm before.

Tony was slightly obsessed with the poetry of it all, making Peter come while wearing one of his shirts. “I love you,” he declared as he watched, feeling Peter’s thighs shake as he kept pounding into him, lewd noises coming from between them. “Love you like this, love you so much.” Tony couldn’t help himself, he had to say the truth and admit how in love he felt.

Peter arched up as he was fucked into oblivion, only being brought back to Earth by Tony’s genuine words. It made his heart beat fast in anticipation, in fear, in happiness. Peter didn’t know what that meant for them, loving each other in this way. He didn’t dwell on the thought, mostly because his dad’s noises were increasing in frequency, getting louder, signaling his own end was coming soon. “Gonna come inside me?” He asked breathlessly. Peter had only ever fantasized about someone coming inside of him, but the idea of having his dad be his first made his body flush and his entrance squeeze around Tony in excitement.

The question only made Tony want to reach his end faster. He didn’t think Peter would actually let him come inside of him, but by the looks of it, that’s what he wanted. He could see it on his face how excited he was at the prospect of him filling him up. His son was a slut, a shameless one, and he loved that fact. “You want my load, huh?” Tony egged on. “Ask nicely, and maybe I’ll give it to you.”

“Please, come inside me, daddy,” Peter begged. “I’ve been good, haven’t I?” He countered, hoping his dad could find the humor in it and give him what he wanted.

“You have, Petey, so good for me,” Tony groaned. It only took him a few more thrusts before his hips stuttered, pushing all the way into him just to spew his load inside of him, ensuring that not one drop escaped.

The feeling of Tony filling him up had Peter letting out another soft moan, feeling impossibly warm. Peter felt like his dad had officially marked his territory with the simple act of coming inside of him. Peter knew he was ruined for anyone else, especially as he lay against the covers breathing harshly, feeling Tony’s come slowly leaking out of him. “Dad,” he whined. “I feel so sticky,” Peter huffed, watching Tony move his legs back onto the bed, not pulling out yet.

Tony was still catching his breath, shaky and spent as he tried not to slump over on Peter. He knew he needed to be good and clean Peter up. “You look so pretty,” Tony sighed and stared down at the mess they had made, slowly, and reluctantly, pulling out of him. “Almost want to keep you exactly like this,” he smirked, leaning down to kiss Peter one last time before climbing off the bed, going to slip his pajama pants back on so he could begin Peter’s well-deserved aftercare.

Peter felt pathetic as he laid on the bed, limbs feeling like jelly while he watched his dad move around the room. “So dirty,” he huffed, the blush returning to his cheeks when his dad gave him a look. “Can we shower?” He asked sweetly, not making any love to get off the bed. Peter was hoping his dad would be merciful and do all the work for him to spare his poor, sore backside.

“Sure thing, sweetheart,” Tony agreed and went back to scoop Peter into his arms, the younger boy latching onto him like a koala. “I think we should sleep in tomorrow, what do you think?” He asked softly, setting Peter down on the sink counter so he could start running the shower.

“Depends,” Peter responded softly. He couldn’t help but wince as he sat on the hard surface, but he didn’t complain. He knew his dad knew best. “Are you going to fuck me in the shower, too?” Peter asked boldly, a smirk in place on his soft features, loving the surprised look on Tony’s face. Peter was at the age where his libido was high and his recovery time was low, so he just had to ask.

Tony was taken aback by the question, but he would always hold firm that whatever Peter wanted, Peter would get. “You read my mind,” Tony hummed, playing along with his son’s desires easily.

Tony and Peter didn’t end up making it to the Grand Canyon the next day, but their day in couldn’t have been more eventful.

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