It had been quite the mission for Natasha; flying to three different countries in three weeks to play catch up with their target; who was now taken down successfully - you're welcome, SHIELD. Strike Team Delta wins again. It was dangerous, exciting and challenging at the same time. Which were the type of missions she liked.

But still...it had been three weeks of missing something else.

She really didn't want to think about it, but the ghosts of kisses in her neck, the weight of his body on hers, and strong hands running down her sides were a tantalizing temptation to return home. And she couldn't control the tightening in her core whenever those memories came up.

Okay, maybe she really did want to think about it.

They had been intimate once (although, that wasn't entirely true - intimacy had followed them since their Winter Soldier mission). Yet, never before had they made love. She didn't know where that left them; they hadn't done much talking. Natasha didn't mind. After being partners then friends then confidants then something else entirely confusing; she could trust him. They would talk soon enough and it would be sincere - still something new to her. After all, they'd both seen it coming. She wasn't kidding about their situation being entirely confusing.

All they had been missing was the last jump. Then it happened. For years of being together; the coin had been flipped, all had been changed and then they were together. One night.

And right then and there, Natasha knew she wanted more; it only made it better he did too.

Honestly. There had been things before: hands searching and holding, cuddles in each other's floors while binging on Netflix, a lingering kiss too close to the corners of each other's mouths. Tense sparring matches where hips made contact. Intimacy. For years, they acted as if they weren't melting for each other - Why? She didn't know.

Then one night, they did more than that and thank the heaven and Earth they did - or at least that's what he'd mumbled in her ear afterwards.

She'd be damned not to get another bite out of her captain or rather him get another bite out of her. She remembered the night clearly - almost too clearly despite the adrenaline and rush that made that particular night come and go all too quickly in her opinion.

But she was being greedy - not many women could boast quite literally staying up all night to make love? - have sex? - what had they done? Little bit of both? Natasha shrugged mentally. Whatever the case, much of her displeasure stemmed from that night being the one night when the hours ticked on too quickly; like, really, couldn't the nights plagued with nightmares rush on by and leave the eternal hours for other enjoyable activities with Steve.

And instead of a repeat act in the morning as they both clearly and unspokenly had planned, they were forced away on separate missions. Lengthy. Separate. Missions.

Great. Just fucking great…

She'd have a word with Coulson and Fury soon enough.

But they'd both be flying to the tower tonight. Nothing prevented her from stopping by his floor ever so casually, and judging by the look in his eyes before, he'd definitely be up for it. Unless Stark distracted him...or worse debriefing…

Not wasting another second, she took out her phone - earning an eye roll from Clint who'd figured out Steve and Nat's situation rather quickly, embarrassingly quickly. She supposed it also had to do with the matching hickeys on either of their necks. Was it bad she wore it almost proudly?

"Texting loverboy to let him know his sweetheart's coming home already?" Clint asked, his teasing voice sing-songy.

"I don't give you shit when Laura calls and you do that 'no-you-hang-up' routine," she pointed out, earning a chuckle from her best friend.

"That's because Laura and I are cooler than you and Steve," he smirked as he settled the jet on the tower hangar, "Besides, you look desperate to get some."

Not acknowledging his lewd gesture with anything other than a smirk, Nat typed quickly:

Flying back already?

Steve's response came a few minutes later; all the while Natasha tapped her foot against the floor of the jet, unconsciously; waiting for the hatch to open. Clint thought it was equally adorable and hilarious.

Yeah, Tony and I should arrive in 10. You?

Already here, soldier. Heading straight to your bed...room.

Oh? :)

I need a super-soldier's help getting out of my suit. Should I wait for you?

You should definitely wait.

Also, I'm not wearing anything underneath. It's easy for me to imagine your hands on me.

Just threatened Tony to fly this jet faster.

Good. My hickeys faded away and I want them back. And I want you to do that thing again where you had me trembling over you… ;)

Tasha, is this you sexting?

You know what sexting is; I'm impressed, Rogers - or should I be worried? Is it working?

Not worried. Definitely working. Be there in 5.

And exactly five minutes after she and Barton landed - once she'd hurried off to his floor and dimmed the lights just right to still get a good look at him, once she'd let JARVIS know not to let Stark spy on them, once she'd lowered the zipper of her catsuit as she imagined peeling off his tight suit - he entered.

Natasha tried not to sigh but damn, no one should look so good with hair in disarray, a filthy suit and a split lip. But here Steve was - defying it all.

His eyes searched for her immediately; the vibrant blue meeting the deep grayish green. Steve's smile was short from disarming as he walked towards her. Natasha was leaning against the wall, arms crossed before her and maybe it brought attention to her slightly exposed chest and maybe she was doing it on purpose because she loved how Steve blushed.

And maybe she also loved how, even with evident distractions, his eyes were still on her face.

"Took you long enough, Captain."

"I recall saying 5 minutes," he said, a twinkle in his eye as he spoke. Natasha took both of his hands in hers and pressed herself closer to him.

"Yes, but still too long…" she muttered, kissing the side of his mouth, "It's been three long weeks."

"Too long," he agreed and searched for her lips.

"You're filthy," Natasha teased, earning a chuckle from Steve as he agreed.

"That's the price to pay when you save a city…" he said, lips smiling over hers, "You're filthy, too."

Natasha chuckled and closed the offending gap between them. When they touched, a bit of fire passed through her; it felt like a sting or a bite of something all too beautiful. A shiver ran across her shoulders as Steve's fingers lined her spine. Pressed against the corridor, she opened her mouth to invite Steve's invading tongue. Her hands grasped at his hair and her legs practically climbed their way to his hips. Steve's deep moan when she pressed her crossed ankles against him to bring their bodies even closer was more than satisfying.

Steve's hands grazed the edges of her zipper, touching her blazing, porcelain skin. With ease he pushed the fabric off her shoulders and slipped it out of her arms. Steve was moving slowly - Natasha could tell it wasn't hesitation but something far more enticing. He was admiring her. Looking at every dip and curve and line. And, when he touched said curves and dips and lines, Natasha felt alive.

The rush of their first encounter wasn't there; this time they were going to take their time.

Steve kissed her neck, leaving behind the warmth of his breath. When he moved up to kiss her cheek, the coolness of the air around her brought goosebumps all over. Natasha was very close to bursting - Really, had it only been a minutes? Of course Steve would treat her this way while they made love?. He had always been close and intimate to begin with. Always listening to her. Always being there for her during tough times. During dark days. He was there to push her forward when her strength was failing. To hold her when nightmares became too much.

Always caring. Always touching. Always intimate.

And this wasn't any different.

Steve brought her back to reality when he captured her lips again; his hands steady on her sides, thumbs brushing the underside of her breasts. Her naked arms wrapped around his neck when there was a moment to breathe.

"Here, Steve. I want it right here," she whispered, nipping his ear in the process. The throaty moan resonating from his chest tingled through her and she realized how fully clothed he still was. Immediately, her adept fingers unclasped his utility belt and threw it carelessly aside. Next came the un-entanglement of her legs as she brought her hands to push him away slightly.

"Tasha…" Steve complained, disappointed with how much space there was between them. She shushed him with a quick peck before pulling his chest piece off. Not wasting anymore time, Natasha covered his torso with soft, wet kisses. Natasha crawled lower, taking his pants and boxers, leaving him gloriously naked before her. Yes, her eyes were definitely gleaming.

When she started her way back up, Steve's lips were waiting. Pressing her to him once more, he took his time with his kiss. Slowly. He was slowly kneading her breasts, slowly biting at her lip. Slowly letting go to sink lower. His lips came in contact with the tips of her breasts. Steve kissed them softly and Natasha sighed deeply. Her back arched at his touch.

She was being adored and - how on Earth did she live before without this? His touch was ever-present as she shivered in anticipation. She wanted to say something, tell him how he made her feel but sudden gasps and moans only filled the suddenly hot air around them.

Steve unbuckled her leg holsters and belts in the meantime. And while their urgent need to become one was getting close to unbearable, he had other plans. Steve kneeled before her and ran his hands up the side of her thighs until he pushed the fabric of her suit, still covering her legs, off her. He smirked when all that was left to remove were her barely-there panties.

"I thought you weren't wearing anything underneath?" he asked, his voice rough and mouth so close to the center of her thighs. Natasha's knees almost buckled at the feeling but she kept her cool all too well.

"Did I say that…oops" she teased, and let out an embarrassingly loud moan when Steve kissed her there. His hands searched for hers and pulled her to him until she came tumbling down. Now, on Stark's overpriced wooden floors, Steve twisted them and shifted until he had Natasha on her back. His hips conveniently settled between her legs.

"You're so beautiful," he whispered, kissing her quickly.

"Come on Steve, get inside me already."

"Not yet…"

Pulling her panties down and off, Steve rewarded her with one fleetingly sultry look before slipping lower himself. Natasha groaned in contentment when he settled her thighs on his shoulders and kissed her again - no barriers this time.

Melted - that's how she felt, if she could pinpoint the feeling. And boy, did she like it. And as she sighed and moaned and groaned, Natasha smiled and thanked her lucky stars none of Barton or Stark's teasing had any degree of truth in it. Nor had they affected the captain.

Steve was definitely not a blushing virgin - in any sense of the word.

Her back arched when Steve played with the bundle of nerves with his tongue. Natasha noticed she was gasping and pressing her knees together - not that Steve complained. She noticed he'd enjoyed her vocalness and the muttered curse that slipped her lips last time. His hands came to grip at her waist, steadying her writhing.

Hell, she couldn't help it. The peak of her first orgasm was taking over her limbs and all she could do was whisper his name and squeeze her eyes shut.

If ever she thought she'd received pleasure before; she'd been wrong about it. Natasha concluded it had been the lack of love before. With Steve, it had always been different. She loved this, loved them together, loved him as her best friend and now loved him as something more.

"Steve," Natasha panted, as he kissed his way back up to her, stopping by her breasts once again before kissing her neck. The words escaped her lips between sighs before she knew it, "Steve...why are you so good to me?"

"You know why, Tasha…" he said, nibbling on her neck as his hand spread her legs apart.

She felt him inch into her, stretching her slowly and deliciously. Natasha's lip trembled to prevent the slight whimper of pleasure that wanted to escape her throat. However, with Steve's lips suddenly on hers, Natasha forgot all about it. He was completely in her now, wrapped in her heat and starting to move. She was determined to give as good as she got; now, re-energized, Natasha met his thrusts with her own. Their hips rubbed against each other; the contact sending a spasm of pleasure within her. Steve groaned, and grasped at her waist tighter than before.

Her lips magnetized to his neck, and she felt him smirk against her skin. He knew she was going to mark him - damn right she was. Perhaps it was somewhat childish of her to do so, but it wouldn't be a childish reminder to the female agents surrounding him.

Childish….love is for children...pure and whole and happy…

Well, maybe what they were currently doing wasn't very child-like, per se. Natasha smirked as she finished her marking and brought his lips back to hers. But she felt like a child - and the world before her was an unimaginable wonder. They turned - still connected and moving; Natasha now above him. Steve's hands roamed her body with a sense of unspoken curiosity and all-knowingness. She threw her head back when his fingertips came in contact with her breasts and down her chest. All the while she moved above him; watching as he shut his eyes, as he groaned, as his lips smiled and twisted and - did he just bite his lip? Damn. Natasha felt a heated sensation rush to the apex of her thighs when she saw that.

A second later she was pressing her body against him and biting that lip herself.

His hands conveniently settled on her waist, grasping hard and securely.

"Do the thing, Rogers," Natasha almost whined (Because Natasha Romanoff doesn't whine - not to others at least) as she draped over him and whispered in his ear softly, "Don't be a tease."

"I wouldn't dare in such a moment," he chuckled, searching for her lips. His hands tightened around her waist and instantly he felt tighter inside her.

"You're always a tease," she slurred, before gasping sharply. Steve had pulled her away from his hips, pulled until he was barely grazing her body and pushed into her all at once - she hardly reacted to rolling her hips as he did. Thank you super-soldier serum and your enhanced precision.

No sooner was she full of him that he was out of her completely. And in again in an instant. Again and again. Her body bounced at the contact, and yes, maybe they got a little louder but whatever. This was new to both of them; this aspect of their friendship - their relationship.

They had catching up to do.

Natasha felt the familiar tightening run it's course through her body; she shivered as they continued to move - it was athletic the way they did it, even though the rubbing against her core was enough to send her into a moaning, shuddering mess.

Stubborn and athletic.

Stubborn, athletic, and deprived.

And maybe a little in love. Maybe a lot.

"Steve," Natasha called out (she really wasn't trying to be loud enough for the whole tower to hear) (maybe). Her peak hit. And, boy, was it a good one. Steve sat up to catch her and her lips - not once breaking rhythm. Kissing him and riding through her orgasm was definitely a challenge. Sure, it was one she didn't mind repeating over and over - for practice.

"So beautiful, Tasha. You deserve so much..." Steve whispered into her hair, "...one more."

"What?" she asked, dazed and feeling impossibly light.

"One more. Give me one more," he said, showing no signs of stopping within her. His hands were already busying themselves around her body and his lips had latched on to the sensitive spot between her shoulder and her ear. Aiming for a hickey, I see.

"Greedy captain."

"Well, it was three weeks," Steve answered, if if the answer was quite obvious - and really, it was.

"You make a compelling argument, Rogers," she said, wrapping her arms around his shoulders and exposing more of her neck for his choosing. And choose he did.

The others could probably hear her - she didn't know how soundproof Steve's entire floor was - but they certainly couldn't blame her.