Chapter Text
The rush of hot water felt great on Steve’s skin as it ran down his sore muscles. It had been a long and tiring day with non-stop world endangerment. Sometimes, he wondered why he chose to get back into this life. It was something that had been expected of Steve when he had been taken out of the block of ice. He hadn’t looked back since he was needed and with The Avengers, Steve was doing good.
Steve knew no one was in the building so he allowed the water to wash away the scents that he normally used to hide his own smell. His mother had taught him how to hide it under herbs and shampoo since he was old enough to talk. Back in the Forties, Omegas weren’t treated all that well and Steve’s mother had put her all into protecting him.
He didn’t know how to act like a regular Omega when the world had changed after he’d been pulled from the ice. The world treated them better in this new day and age; something Steve liked. But the secrecy he had lived with in his old life was hard to get rid of. He still masked his scent and had sworn the doctors who had seen him first to secrecy. Steve was almost ashamed of what he was if it hadn’t been for the fact he had overcome so much of what he should have been. Steve sighed and closed his eyes as he hummed a popular tune from his era. It relaxed him and distracted his mind from the lack of a mate.
Someone had caught his eye but Tony Stark was a playboy and Steve knew full well that he wouldn’t so much as look at him. Steve may have been fit, but he still had the slight build of an Omega and he resented it so much. No matter how much time he spent weightlifting, he couldn’t grow. The thought haunted him until Steve started to sing softly, a gift no one knew he had and why would they? The ones who did know were dead.
Tony was lounging around in the communal living room when the scent hit him. He sat up from where he had been laid out on the couch, watching some educational show Steve had left on hours before. His eyes dilated and he breathed in deeply, the scent filling his nose with cinnamon and cloves.
He sniffed the air, looking for all the world a wolf on the hunt. The Alpha in him was already awake and trying to take the reins. He knew this scent, it was so familiar, like a blanket he’d had since he was a child, but for the life of him he couldn’t remember where he had smelled it before. Not only was it familiar, it was amazing. Tony hadn't smelled anything quite like it before in his life. It drew him in and wrapped around him until he had no chance of escape.
He pushed himself off the couch and started down the hall, scenting the air as he went. The smell was coming from someone inside the tower, somewhere close. It was a distinctly Omega scent but Clint wasn’t in the tower right then so that was impossible. Tony, Steve, and Bruce were the only people currently at home and Bruce was an Alpha like himself while Steve was a Beta. So it didn’t make any sense.
Steve sighed as he turned off the water; he couldn’t continue to shower. He should have just taken a bath to relieve the ache in his sore muscles. The thought had appeal but he couldn’t bring himself to do it and settled for drying off. It felt nice not to cover his scent for once and to hide what he was, even if it did cause some conflict within him.
When he stepped out of the shower, Steve dried himself and walked out into his rooms naked. Whenever he had the chance, Steve walked around naked, loving the feel of nothing against his skin. It was his natural state, after all. Steve stretched to the ceiling, unaware of dark eyes that were drinking in the sight of his body.
The sound of water turning off startled Tony out of his daze and he jumped a little when he realized he was now near Steve’s rooms, halfway across the tower. He had no real memory of walking all that way, just that he had been following his nose. He looked around himself and found that he was right outside of Steve’s room.
The door had been left open and he could see right in. The smell was all around him now, sinking into his skin and mind. He really didn’t know what could smell so good but as he turned and caught the sight of a naked Steve exiting his bathroom, Tony really didn’t care anymore.
His mouth went dry and his cock hardened in his pants as he watched Steve move across his room, toweling his back dry. The movement stretched the muscles in his shoulders and back, showing just how muscled Steve was even if you couldn’t see it. Tony’s eyes roamed his body, watching Steve’s ass as he continued on into his room.
Steve sighed as he sat down on the seat attached to his bay window, his left ankle resting over his right thigh. He had a perfect view of New York at night. He sighed wistfully as he rested his chin on his hand. His blue eyes outlined every skyscraper as he wished his circumstances had been different. Steve wanted an Alpha, someone to take care of him for once. Unfortunately for Steve, the one person he wanted most was preoccupied with chasing skirts.
The Alpha in Tony was rearing up, tearing at the tight reins he liked to keep on his more animalistic side. Tony didn’t care for the whole unable to control one’s self many Alphas complained of when they met Omegas. Tony had never had a real issue with it before. Until now, which made no sense because Steve wasn’t an Omega. Unless he’d been lying to them this whole time.
Lust filled eyes traced over Steve’s body, taking in the excellent view Steve had made of himself without meaning too. His legs framed his cock and balls perfectly and Tony felt a little sheepish when he felt saliva pooling in his mouth at the sight. His cock ached against the zipper of his pants and he twisted his fingers in the cotton of his pants. The lights from the city painted Steve in a beautiful light, blues, reds and greens mixing and combining across pale skin.
Tony didn’t know why he was feeling this way. This was Steve, a Beta, and here he was reacting as if the other man was an Omega. It muddled and confused him and before he knew what was happening, a deep growl was vibrating past his lips and he was taking a small step into Steve’s room. He halted as soon as he realized what had happened but he couldn’t see to retrace his step. He was all but glued to the spot.
Steve saw a reflection in the glass of the window and jumped. He turned around with wide blue eyes and saw Tony standing in the middle of the room. His body wouldn’t move when he wanted it too; ignoring the silent command from Steve’s mind. He swallowed the lump in his throat and lowered his eyes to the floor, unsure of what to say.
All of Tony’s instincts told him to move across the room and grab Steve by the hips and just ravish him. For all the world Steve smelled like an Omega and Tony just didn’t get it. He wanted to know what was going on, the scientist inside of him was demanding answers even as the Alpha inside him was demanding he eat Steve up.
“Steve,” Tony finally managed after working his mouth for a moment. The name was hot and thick on his tongue, barely even an actual word. “What’s going on?” He couldn't keep the growl from his voice and Steve’s reaction to it only made his cock ache.
“I’m an Omega. I’ve hidden it since I was a child.” Steve’s eyes flickered up to Tony’s face for a second before he lowered them again. His body shivered from the deep growl in Tony’s voice and he couldn’t help the spike in arousal that filled the air with it’s thick, heavy scent.
“You’re an Omega?” The word rang in Tony’s head until it was all he could hear. Steve was an Omega. Not a Beta. That explained a lot, but somehow Tony wasn’t all that reassured. Steve’s smell was all around him, calling to him and pulling him towards the other man. He wanted nothing more than to throw Steve to the floor and fuck him senseless, but that wasn’t how he did things. He was a big believer in self control, despite what the media liked to say about him. He didn’t believe that an Alpha could be so far gone from an Omega’s scent that it overtook his mind and made him rape them. That was nothing more than an excuse and no matter how much he wanted Steve, he wasn’t going to lower himself to such a level.
“Yes,” Steve whispered and moved from the seat with a grace only Omegas had. He approached Tony and stopped short of him, barely a few inches away from the Alpha. Steve could smell attraction radiating from Tony and it flared something inside of him.
“I had to hide what I was back in the forties because Omegas were abused. My mother protected me as much as she could. I’m sorry if I’ve offended you.” Steve said shyly, his eyes lidded enticingly.
“You haven’t offended me,” Tony managed to say. He felt as if he was swimming in Steve’s scent with him this close. It was embedding itself inside his head, telling him he wanted things he had never dreamed of with another person.
“It’s okay, Steve,” he all but growled and took an unconscious step forward. “Fuck, you smell so good.” He wanted to press himself all over Steve, roll in his scent and mix his own with it.
Steve’s blue eyes were vulnerable as he looked up to Tony. The feelings that he had over the years were ready to burst with the way Tony’s scent drifted over to him. “I want an Alpha, Tony. I’m ready.”
“Shit, Steve,” Tony growled. hands coming up and gripping Steve by the arms. The words sent lust through him like a lightning bolt. He didn’t think he had ever wanted anything more in his life. He leaned close and nuzzled into the skin of Steve’s neck, breathing in deeply.
“You have to say it.” Tony’s voice was strained with need and the effort it was taking for him to hold back. He rubbed his nose along Steve’s jaw, basking in his scent. “You have to say you want me.”
“I want you, Tony, more than anything.” Steve whined and turned his head to the side to give the other access to his neck, a sign of trust between an Omega and an Alpha. He needed this just as much as Tony seemed to. Steve never thought that Tony would ever want him.
Tony growled against Steve’s neck at his words. Now that he was confident that this what Steve wanted, he wasn’t going to hold back. He gripped Steve’s ass in both hands and hauled the Omega up against him with a throaty growl. He kneaded and massaged the supple flesh in his hands, delighting in the small sound it drew out of Steve. He could smell how much Steve wanted him and his cock pulsed and arched against his pants.
He rutted up against Steve as he bit hard into the skin of his neck. He swiped his tongue against his skin and moaned as he finally got a taste of the smell that had been taunting him all evening. He worried at the skin in his mouth, wanting to mark and bruise, to make Steve his and never let anyone else have him.
“I’m going to tear you up,” Tony promised and he pulled Steve even closer, nails digging into his skin and rubbing his cock against Tony’s pants.
“Please.” Steve whispered, knowing he was dripping wet already just from the sheer power emitting from Tony. It’s like a drug to him, filling him with hope that this will be more than a one night stand. Steve was lifted from the floor and he wound his legs around Tony’s trim waist. The glow of the Arch Reactor beamed between them as Steve cupped Tony’s face and kissed him tenderly, the hand at his back keeping him in place.
Tony moaned into the kiss, hands gripping Steve firmly to keep him from falling to the floor. He walked them blindly to the bed, glad that he had a decent idea of the lay out of Steve’s room. He could feel Steve’s slick through the cotton of his pants and he growled at the feeling. He dropped Steve to the bed, all but tearing off his clothes in an effort to get naked as fast as he could.
He didn’t bother with buttons or zippers and could care less about the clothing. He wanted to feel all of Steve’s skin against his own. He fell on top of the omega with a groan, hands already exploring all of Steve’s skin. He nipped and sucked marks into the skin of Steve’s shoulders and collarbone, marking him as his own. There was no way on this Earth he was going to let the Omega go after this.
Steve’s skin rippled with each gentle touch of Tony’s hands. He was basking in the attention of the Alpha, feeding a desire that he thought would never come to fruition. Steve’s hands weren’t idle as they explored the strong muscles of Tony’s back. He was drowning in lust and emotion but Steve couldn’t bring himself to care.
“I need you, please.” Steve said in a low, gravelly voice.
“Soon, lovely,” Tony reassured him, kissing a line down Steve’s chest to suck a nipple into his mouth. As much as he wanted to tear into Steve’s body, he also wanted to explore and worship him. Omegas were precious and deserved to be loved until they were begging for it. Or that was how Tony felt about it. He was going to worship Steve. There would be times for fucking him hard and rough but not right this second.
“You’re so beautiful,” Tony murmured as he pulled away from Steve’s chest to admire his body. He was all swiny muscle and pale skin and Tony couldn't get over how he felt against him. He smoothed hands up Steve’s sides, watching him shudder for a moment before leaning in to catch him lips in a filthy kiss. He rubbed his thumb over Steve’s nipple, pulling and tugging at the sensitive piece of flesh.
“Tony,” Steve moaned as he bucked up into Tony’s body. He loved the feel of the Alpha’s heavy body over him, making him leak even more. Steve was more than ready to have Tony mount him and he moaned lewdly, open mouthed, at the thought of Tony ramming into him over and over again.
“Impatient aren’t we?” Tony teased as he trailed fingers through the saliva covering one of Steve’s nipples. He dipped his fingers into his belly button and then teased down further until he was tracing Steve’s hip bone. He intentionally kept his fingers away from the places Steve wanted them, instead tracing them down the top of his thigh.
“You gonna beg for it?” Tony asked and he licked at Steve’s nipple and teased his fingers against the top of Steve’s knee.
“I need your cock, Alpha. I need it splitting me open and riding me hard. I want you to knot so deep in me I will never forget what it feels like.” Steve moaned as he became a pile of goo. Tony knew how to play his body and he was amazed. His blue eyes were cloudy with lust as he searched for Tony’s brown orbs to make that connection between them much more profound.
“Patience is a virtue,” Tony mused as he trailed his fingers back up the inside of Steve’s thigh. He moaned when he found the Omega wet to his knees. He trailed his fingers through Steve’s slick, spreading it further up his leg and past his cock to his stomach. He traced patterns across Steve’s chest with his own slick before leaning down to lick up the mess he had made. He growled at the Omega’s taste and nipped at the tender skin of Steve’s stomach.
He pressed his palm against Steve’s knee, spreading his legs wider and trailing his whole hand through the other man’s slick. He traced the dip of his hip and finally wrapped wet fingers around Steve’s aching cock.
“I wanna take you apart,” he whispered against Steve’s hip, tongue tracing the route his fingers had taken before.
“Do it.” Steve’s breath shuddered at the realization that he wanted Tony to take him apart for the rest of his life. He needed it so badly that he could taste it on his tongue much like Tony’s scent.
Tony growled in response and bit Steve hard on the hip, making sure he left a bruise. He stroked him from root to tip, watching as the Omega arched into his touch. He loved how responsive Steve was and he told him so. He pressed his thumb against the slit of Steve’s cock, having completely forgotten about his own aching erection as he set about making Steve fall apart.
And fall apart Steve did; beautifully as he keened lowly in his throat. The fingers that were drifting through his slick trailed down until they found his hole and traced over it; making it twitch with desire. Tony played with his ass, stretching it for his cock slowly.
“Listen to that,” Tony whispered. He licked a stripe across the bottom of Steve’s cock as he twisted his fingers inside the Omega. With each twist of his fingers, Steve’s body made a lewd sound, body so slick Tony’s fingers easily moved in and out of him. He worked Steve open nice and slow until the covers were wet with Steve’s desire.
“I can’t wait any longer, Tony. Please!” Steve said desperately as his hands tangled into Tony’s hair and pulled him up for a long, lusty kiss. He guided Tony’s thick organ to his weeping hole and whispered what he wanted.
Tony hummed against warm skin and lifted Steve’s leg over his shoulder. His cock was aching to be inside the Omega and Steve’s scent was so heady now Tony felt dizzy with it. He supported Steve’s hips with one hand on his ass and guided his cock into him with the other. He pushed inside of him easily. Steve was so wet that slick leaked out around his cock as he bottomed out, balls slapping against Steve’s ass.
“Oh God, so full.” Steve moaned as his eyes rolled into the back of his head. Tony’s cock filled his aching hole so well that he couldn’t help the desperate and needy moan that fell from his lips. His hands twisted into the sheets below him and he bucked his hips to tell Tony to move; that he was more than ready for this.
“Fuck you’re wet,” Tony growled as he slowly pulled his cock out of Steve until just the tip remain. Slick trailed after his erection, dripping down Steve’s thigh and onto the sheets below them. He leaned over the Omega and started thrusting. He moaned at how good Steve felt around him, wet and tight all at the same time. He watched Steve’s face as he filled him over and over, tongue sneaking out to lick his lips as he admired just how wrecked Steve already looked.
Steve was at the point where he couldn’t even form words and spoke through his actions. His hands moving from Tony’s hair to his jaw spoke of just how much this moment meant to him as small groans only meant for his Alpha slipped through his lips. He held tenderly onto Tony as the head of his cock pressed against his prostate over and over again. He leaked from his hole to the point where everything soaked, even Tony’s balls.
Tony nuzzled into Steve’s hand and nipped at the flesh of his fingers. He angled his trust so he hit Steve’s prostate with every thrust. He loved how Steve arched and shuddered under him. He’d never wanted someone so bad. He could feel a bond trying to form but he didn’t want to tie Steve to him if the Omega didn’t want him. And right now, in this moment, Steve was so far gone he wouldn’t know up from down.
“Wanna fill you up,” he whispered hotly, eyes catching and holding Steve’s eyes as he wrapped a hand around the Omega’s erection and stroked him in time with his thrusts.
“Do it.” Steve whispered, closing his eyes as he felt his orgasm hit him. He noticed that Tony hadn’t marked him and in his drowning pleasure he let it slide. Balls drawing up, Steve came with a hoarse whisper as he felt Tony’s cock knot in him.
Tony groaned as Steve tightened amazingly around him. He watched as Steve came apart under him, body shaking with the force of his orgasm. Tony’s possessive growl echoed around them as his climax hit him and he forced his knot passed the tightness of Steve’s hole. He doubled over Steve as his climax shuddered through him, filling Steve with his seed.
Steve keened lowly in his throat as Tony rolled them so that Steve could lay on his chest. He tried to keep his eyes opened but he was just so exhausted that he couldn’t. As he fell asleep, Steve whispered the three little words he’d been dying to say since he met Tony; ‘I love you.’
Tony wrapped his arms protectively around Steve, holding the Omega close. He nuzzled into Steve’s neck. It would be awhile before his own climax finally subsided but he didn’t mind. He had Steve in his arms and he was beyond content. He stiffened when Steve sleepily murmured those words and he wondered if he had heard the man right.
His heart pounded in his chest even as his body shuddered with another pulse of pleasure. He carded his fingers through Steve’s hair and pressed a kiss into Steve’s hair. He wanted him, wanted to keep him safe and protect him from the world. Tony wanted to mark him and bond with Steve, but that was Steve’s choice and it wasn’t a choice Tony was willing to make for him. He resigned himself to asking Tony in the morning.