Chapter Text
“There’s this trip coming up in a couple weeks that I wanted to go to, but I’m not sure,” Peter was saying.
Tony hummed but wasn’t paying much attention to the boy. His scent was intoxicating and Tony was trying to figure out how to get more of it. Sometimes, if he planned it right, he could make Peter start to slick up. The boy made such lovely faces once he realized what was happening. But he always came back for more. It egged Tony on, to see how far he could go with the young omega.
“Why don’t you want to go, Peter?” Pepper asked.
Tony glanced up. He hadn’t even realized she was here. She smiled at Tony and leaned in for a kiss. He resisted the urge to cringe away. He hated how bland she smelled. It had been fine before, but now that he had constant access to a sweet-smelling little omega it wasn’t enough anymore. Tony caught a look on Peter’s face as the boy turned away.
“Well, it’s a father/son trip,” Peter mumbled. “And, well, I don’t have a father.”
Pepper cooed at the boy. Tony shrugged. No father? Don’t go on the trip. Simple. But Pepper must have thought otherwise.
“Tony, you should go as a chaperone,” Pepper said.
“I should what as a what?” Tony asked incredulously.
Peter’s face had lit up at Pepper’s suggestion, but at Tony’s response, he deflated faster than a popped balloon. Tony glanced at Pepper and groaned internally at her face. Fuck. She was gonna make him do this.
“Tony, c’mon,” Pepper needled.
“Why would I want to go on a camping trip with a bunch of children?” Tony asked.
Peter cringed and looked away. Pepper hummed and shot Tony an angry look.
“Tony,” she said.
“It’s alright Ms. Potts-” Peter began.
“No, Peter, I’m sorry,” Pepper cut him off. Tony raised a brow, rude. “Tony. You should do this for Peter.”
“Oh my god, Pepper. Fine, I’ll go on the trip. For Peter, but you owe me,” Tony huffed.
Peter sent a small, apologetic, smile at Tony and he rolled his eyes back. Still, he sent a fond grin back at the boy, which made his face soften a bit.
Tony had discovered that the school had planned to camp in the middle of nowhere. In tents. With sleeping bags. He put his foot down. A large donation to their science wing convinced the school to move the location to a proper campground with cabins. Tony booked one specifically for himself and Peter and made it clear to the school that a: they would not be sharing, and b: Peter would definitely be staying with him.
It wasn’t that hard to convince them, and they were happily planning their upgraded library.
On the day of the trip, Tony arrived at the school. Peter was standing with his friend Ted and the girl in front of a big yellow school bus. Not happening. Tony pulled the teacher over and gave them a couple hundred reasons why Peter should be allowed to ride with Tony in his car. He led Peter into his Chiron and they drove off.
The trip to the campground was annoyingly long and Tony’s mind began to wander. He didn’t get to see Peter in his school uniform often, and he made a mental note to make sure it happened more. As an omega, his uniform consisted of a little black pleated skirt, a white button-down short-sleeved shirt, and a tie. Mary-Jane shoes completed the look. The boy looked positively edible and Tony’s hand began to wander.
Peter wasn’t wearing leggings or tights under the skirt and Tony’s hand was able to make contact with the bare skin above his knee. Peter glanced down and squirmed a little but didn’t say anything. Tony had done this before, of course. He liked to see how far he could push the boy before he spoke up. A few times, Tony had been able to get close enough to brush his fingers along Peter’s panties.
Thinking back on the things Tony had been able to get away always made him smirk. Peter was so trusting. It had started with small things, a brush here or a comment there. The best was when Tony was fitting the kid for a new suit. He could put his hands in all sorts of places and Peter would think it was okay.
The spider bite had changed Peter a lot, from what Tony could tell. The pictures he’d seen of the kid before he got bit at the age of 12 showed a normal-looking omega boy. Small, gangly, no muscle to speak of. Now, he had the best six-pack Tony had ever seen on an omega, and his arms were like steel. One of Tony’s favorite things was to squeeze Peter’s arms and comment on how strong he must be.
His breasts had changed too, but Tony wasn’t sure if that was a result of puberty or the bite. They were different from other omegas, but they were still nice. Tony had been able to play with them a few times already, but he really wanted to get his mouth on them. He glanced at the boy beside him and slid his hand up. His pinky was just under the hem of Peter’s skirt. The boy looked again but still said nothing.
Tony adjusted himself, feeling his cock harden. He wondered if he could get the boy to slick up before they got there. He wished he could gag the kid on his cock. His hand slid up again, under the skirt. His pinky rested in Peter’s groin, touching the fabric of his panties. Tony’s best suggestion to date had to be that, because of the suit, Peter should wear thongs instead of omega boxers. Tony had seen him in just his little thong and bra on several occasions and it always drove him mad.
Now, Tony moved his pinky, stroking it along the seam of Peter’s panties. The boy shifted and Tony’s finger slipped under the fabric. Peter gasped and Tony repressed a grin. He moved his finger again, sliding it up and down Peter’s labia. Peter shifted again and Tony’s hand moved again, deeper into his slit. Fuck, Tony didn’t even have to do anything, Peter was doing it all himself. Tony wondered if it was intentional. A glance at the boy didn’t answer the question. Peter’s eyes were closed and his face was scrunched up. By now, Tony’s finger was pressing into his little cocklet. He shifted his hand, dragging his pinky along the little thing. Peter let out a little whimper and a low growl began to build in Tony’s chest.
How far could he take it? He could smell Peter’s slick and he licked his lips. He slid his palm down and angled his fingers. He pressed his ring finger down into Peter’s slit and kept moving his pinky along his length. Peter’s breath caught and Tony looked over. His eyes were open now and he was staring at Tony’s hand. His hips lifted, just a little, then dropped back down. Peter looked over at Tony and whimpered again.
“Mr. Stark?” Peter asked.
Tony wanted to groan. He always stopped when Peter spoke up. That was the furthest he’d ever gotten the boy and he’d wanted to see if he could go further. Maybe slide a finger inside. Instead, he pulled his hand free and rested it on Peter’s knee.
“Yeah, kid?” Tony asked, feigning nonchalance.
“Um, nothing,” Peter answered.
Tony grinned and glanced at the GPS. They were about a minute from the campground. He pulled in and they met up with everyone else. Peter kept shooting Tony glances but he ignored the boy. They did their little camp outing thing and Tony stayed on the sidelines. He didn’t care about any of this.
After a while, Tony was able to pull Peter aside. He let Peter talk as his hands wandered. He skipped starting at the knee, instead going straight under Peter’s skirt. Peter’s legs widened a small amount and Tony grazed his fingers over Peter’s covered pussy. He pushed the fabric to the side, exposing the boy. It was the first time Tony had seen his exposed pussy and he let out a low groan. His hand moved and he slid his finger into the boy's slit. Peter whimpered but kept talking about his latest project with the Spider-Man web slingers.
Tony pressed forward, sliding his finger down. His fingertip brushed Peter’s hole and he hesitated. His eyes flicked around but no one was paying attention to them. He slid his finger inside and Peter sucked in a gasp. Tony pressed in further, all the way to the base. He pulled it back and pressed forward again a couple of times before Peter finally spoke up.
“Mr. Stark?” Peter whimpered.
Tony slid his hand free.
“Yeah, Pete?” he asked.
“Nothing, sir,” Peter said.
They went back to the rest of Peter’s classmates.
After several grueling hours, the teachers finally announced it was time for bed. Tony snagged Peter’s hand and led him over to their cabin. He had been in earlier to look around, but Peter hadn’t seen it yet. He couldn’t wait for the boy’s reaction.
It didn’t take long to get it. They walked in the only door and Peter looked around. The front room consisted of a kitchenette and a small sofa. There was no cable or TV and the room looked pretty bare. There were two other doorways, without doors. One led to a small bathroom with a stand-up shower, the other to the bedroom. The only bedroom. Which had a single king-sized bed in it. There were no curtains covering the doorways either.
“Um, Mr. Stark?” Peter asked.
“Yeah, Pete?” Tony answered, pretending to be distracted by his phone.
“There’s only one bed?” Peter asked.
Tony looked up and pretended to be confused.
“What do you mean? I booked a cabin with two fulls,” Tony lied.
“No, uh, there’s just one big bed in there. And no other bedrooms,” Peter said. “I could maybe sleep on the sofa.” He glanced dubiously at the tiny thing and Tony clucked his tongue.
“Nonsense, Peter. You’ll just have to share the bed with me,” Tony said like it was a perfectly normal thing for a grown man to suggest to his fourteen-year-old mentee.
“Um, right. Well, the thing is, I didn’t know there would only be one bed. And um, I don’t have any pajamas, Mr. Stark,” Peter muttered.
Tony’s eyebrows rose at that. That was an unexpected, but welcome, boon. He grinned internally but kept his face clear.
“Well, that’s alright, you can wear your underwear,” Tony suggested.
Peter bit his lip but nodded. He went into the bathroom and turned to look at Tony over his shoulder. Tony busied himself with his phone again and Peter slipped further into the room. Tony moved to the sofa and sat down; it was the perfect view to watch. He kept his sunglasses on and watched Peter in the bathroom. Peter stripped his clothes off, keeping his back to the door. He reached in to turn the shower on and Tony smirked. When Peter got in the shower and closed the curtain his eyes widened. The curtain was clear and Tony could see Peter clearly.
Peter bit his lip but began to wash himself. Tony grinned when the boy cleaned between his legs, knowing he was cleaning the slick Tony had caused him to make. Peter was quick and soon enough he was pulling back the shower curtain. Tony kept his head pointed down as he watched Peter snatch up a towel. He bemoaned the loss of a naked Peter, but still watched as the boy slipped into a tiny little thong. Soon enough, Peter was standing in the main room again with the towel wrapped around himself. Tony stared and Peter squirmed, moving from foot to foot and pressing his knees together.
Finally, Tony brushed past the kid and into the bathroom. He took his time, stripping and getting the shower up to temperature. Looking over his shoulder he found Peter staring at the bedroom. Tony stepped into the shower. He washed himself off and played with his cock a little. He wanted it to be about half hard when he walked into the bedroom for what would be Peter’s first look at Tony’s cock. Peter hadn’t looked at him earlier, and a glance into the main room showed it to be empty.
Tony turned the shower off and snatched a towel. He dried his hair and ran the towel over his arms and legs. He walked out of the bathroom and into the bedroom, pretending to continue drying himself. A gasp caught his attention and he looked up. Peter was in the bed, under the blanket. The covers were pulled all the way up his chest and Tony could tell he wasn’t wearing a bralette.
“Hey kiddo,” Tony said.
He made no acknowledgment of his nakedness. Instead, he dropped the towel and moved around the bed. He lifted the blanket, enough that he was able to confirm that Peter was definitely topless, and slid in. He laid back and picked up his phone. Peter watched him the entire time. Tony ignored him and eventually, Peter rolled the other way, facing the other side of the room.
After half an hour, Tony knew Peter was still awake. He put his phone down and shimmied over closer to Peter. He reached out and grasped the boy’s hip and tugged him back. He pulled Peter against his crotch, his cock nestled between the boy’s asscheeks. His hand slid down his thigh into Peter’s groin. He skipped to the good part and started stroking Peter over his panties. Peter whimpered but didn’t speak up.
Tony didn’t care if he did, he had no intention of stopping this time. He let his hands wander, pressing into Peter’s slit and pushing the fabric deeper into him. He rubbed his fingers up and down and waited until he could smell Peter’s slick. Then he moved his hand back and tugged at the waistband of Peter’s tiny thong. He pulled until it rolled under Peter’s ass and then tugged it down Peter’s leg. Peter glanced back but actually helped get it off. The confusion on his face was adorable.
Once the last remaining barrier between them was gone, Tony’s hand dove back between Peter’s legs. He tugged Peter’s top leg up and slid his hand down. He took Peter’s tiny cocklet between two fingers and stroked it for the first time. Fuck, the kid was so small. His other hand slid between Peter’s thighs and down into his slit. His middle finger was pressing into Peter’s hole when the boy finally spoke up.
“Mr. Stark?” Peter gasped.
“Yeah, Petey?” Tony asked, pressing his finger in further.
“Ohhh, um. What, mm,” Peter broke off as Tony started to slide his finger in and out of him. “What, um, what are you doing?”
Tony didn’t answer right away. Instead, he continued to press his finger in and out of the young boy. When he added a second finger, he finally replied.
“I think that’s pretty obvious, isn’t it Petey?” Tony said.
He pistoned his fingers harder and Peter let out a little moan. Peter didn’t answer at first and Tony pinched his cocklet. He added a third finger and Peter finally spoke up again.
“Yeah, but, why?” Peter asked.
Tony huffed and bent down to suck a kiss into Peter’s scent gland. Peter whimpered and Tony played him like a fiddle. He smelled delicious and Tony couldn’t wait to knot him.
“Mr. Stark?” Peter asked again.
“Because, Peter. I’m doing you such a big favor. Can’t you do me one? Besides,” Tony said, plunging a fourth finger into the boy. “Doesn’t this feel good?”
“Ah, yeah, it feels really good. What about Ms. Potts?” Peter asked. He was grinding his hips into Tony’s hands, chasing the pleasure Tony was giving him.
“What about her?” Tony muttered.
“Aren’t you two together?” Peter asked. Tony huffed.
“She’s a beta, Pete. It was never going to be long-term,” Tony said.
“Oh,” Peter gasped. Then again, this time a moan.
Tony thrust harder, determined to make the boy come on his fingers. He wondered if it would be his first.
“This your first time, Pete?” Tony grunted.
“Yes!” Peter cried, presumably both in answer and in ecstasy because at that moment his legs clamped down and he shook with pleasure.
“That’s it, let me hear how good it feels,” Tony cooed.
“Oh god, Mr. Stark!” Peter cried as he rode out his first-ever orgasm.
Tony coaxed him through it and kissed his neck. When Peter was done, Tony rolled over him. He slotted himself between Peter’s thighs and rubbed his cock over the soaked slit. He looked enormous compared to the fourteen-year-old. His alpha cock had to be four times his size. Peter looked down and his eyes widened.
“Mr. Stark?” Peter squeaked.
“Mm, yeah?” Tony asked, continuing to rub his cock between the boy’s pussy lips. He held them together over his cock and thrust forward.
“Are you, um, are you planning to put that, um, well, inside me?” Peter asked.
“Of course, sweetheart,” Tony said like it was the most normal thing in the world.
“Ohhhh,” Peter moaned and his hips lifted.
Tony held him down and his cock slid back, he kept rutting into the boy and then he moved one hand. He pressed the tip of his cock downward and slid into Peter’s unprotected pussy. The boy moaned and more slick gushed out of him. Tony panted and pressed forward, sheathing himself inside the underage boy.
“Oh god! So big, Mr. Stark,” Peter whimpered.
Tony watched his cock split the boy apart and knew he’d be walking funny tomorrow. He sank more of his cock inside and rubbed his fingers along the outside of Peter’s pussy lips. Peter watched too, seeming fascinated at how his pussy wrapped around the grown man’s thick cock. He whimpered again and Tony pulled back.
“Mr. Stark, please,” Peter whimpered.
Tony didn’t really care, but he asked anyway, “Please what, kid?” Peter didn’t answer, probably didn’t know. “This is your first cock, right, kid?”
Peter whimpered and nodded. Tony pulled out again and snapped his hips harder, sliding in deeper than before. Peter cried out and Tony started fucking him in earnest. He snapped his hips into the boy, wanting to make him come on his cock. The last year and a half had led up to this moment. Tony fucked the boy roughly, knowing he could take it. Omegas were born for this.
Peter cried out and thrashed underneath Tony. He tried to lift his hips but Tony held him down. A constant stream of “oh god” and “Mr. Stark” left the boy’s lips and Tony relished it. His pussy felt so good wrapped around Tony’s cock. He knew he’d be doing this again and again. He spared a thought to remember to look up the age of consent and mating laws as he fucked into the boy. Obviously, he’d have to wait a few years, as Peter was too young, but he didn’t care about that. It’s not like he’d have to wait to fuck him again.
“Mr. Stark, oh god, I think-” Peter broke off.
“Think what, kid? Gonna come again?” Tony grunted.
“Ah, yes!” Peter cried out.
Tony wondered if neighboring cabins could hear them. The thought made him slam harder into the boy. His knot was starting to swell. He pinched Peter’s cock and Peter keened, clamping around Tony’s cock. He got so much tighter that Tony was almost forced out. Tony panted with the exertion as he fucked back into the boy whose walls were fluttering around him.
“Are you gonna knot me, Mr. Stark?” Pete asked.
“Fuck, what do you think?” Tony growled as he slammed his knot home.
He continued to thrust as he sprayed Peter’s immature womb with his come. The kid probably wasn’t on birth control, but he could take care of any pups that showed up before he was ready. Peter cried out beneath him and convulsed in another orgasm as he was filled to the brim with Tony’s come.
Finally, Tony collapsed forward, holding himself up enough that he didn’t crush the child under him. With his knot locked in place, Tony bent down to take Peter in a kiss for the first time. Pete tried to reciprocate and it was kind of hot how inexperienced he was. Tony kissed him until his knot went down and then he pulled back. He looked down at where they were joined and watched his length slip free. Come drooled from Peter’s gaping hole and Tony reached down to press it back in.
Peter whimpered and Tony looked up. Peter was watching Tony’s hand.
“You like that, Petey?” Tony asked. Peter nodded and Tony pinched his thigh. “Verbal answer.”
“Yes, sir,” Peter gasped.
“Yes, what?” Tony demanded.
“Yes, sir, I like it,” Peter replied. Tony nodded.
“Good boy,” Tony purred.
He shifted and Peter’s gaze drifted to Tony’s cock. It was soft now, but the boy couldn’t tear his gaze away. Tony smirked.
“Like that, too?” Tony asked. Peter bit his lip. He started to nod but Tony thrust his finger harder into him.
“Yes! Yes, sir, I like that, too,” Peter whimpered.
“Good. Understand, Pete, you’re mine. This,” Tony said, pressing his fingers in again, “is all mine now. I can do what I want with it. You’ll be getting plenty more of this, too,” Tony said flexing his cock. Peter whimpered again.
“Yes, Mr. Stark, sir, I’ll remember,” Peter said in a small voice.
“Good boy,” Tony cooed, finally pulling his fingers free.
Yeah, Tony had found his mate.