Okay, so I had a request for Tony's daughter with Steve, which I have a lot of already, so I'm just using my ITYWD characters, but this is right after the reader and Steve started dating. No one knows the relationship between her and Tony yet, if you recall Book one. 

"Oh, my god, please don't make me regret introducing you two," Tony grumbled, turning his head away to stare out of the quinjet window, or anywhere away from you. "I thought I made it exquisitely clear that work is work and private is not to be seen."

"What? I can't give my girl a goodbye kiss before we run into danger? That's a little strict, don't you think?"

"Cap, I've known (Y/N) a lot longer than you have, okay? I'm not a fan of seeing your lips all over her, if you don't mind. it's taken a pretty fair amount of time for me to tolerate you, and now that I might actually like you, let's not step backwards here. I really don't feel like throwing up in my helmet today."

To drive his own point home, Steve barely held back his laughter at the audacity of it all and stood, lifting you from your seat so that he could make an even more energetic and unwelcomed scene for Tony's sake. It could have been a mistake to play along so exuberantly, but you squealed loud enough to get his attention, wrapping your legs around Steve's waist just in time for Tony to get his chair turned around.

"Ugh," he huffed, mocking with a forced wretch and clutching his chest, "my left arm is numb. Is that normal?"

"If you didn't want to see this, then why did you work so hard to make it happen?" you asked with a raised brow and a look of challenge. "I didn't even think he was that cute, remember? I liked Barton."

"Woah, hold on just a minute," Steve gasped, releasing you so quickly that you nearly dropped to the jet floor in a heap, thankful for your own quick reflexes to land on your feet. "You never told me that."

"I didn't think it was important. Besides, Clint and I are better as friends."

"No, I mean that you didn't think I was that cute," he whined back, eliciting a welcome laugh from Tony. "What the hell, (Y/N)? I can't believe it. How could you not find all of this attractive? Especially stacked up next to Barton...but that does lead me to another issue, now that you mention it. If you know that the two of you are better as friends...did you guys, you know..."

"No, Steve, not even so much as a first date. Not that I didn't try."

"She got shot down," Tony chided, "hard."

"I did not!"

Steve's attitude made a sudden shift, a wide grin now curling his lips and a glimmer of humor alight in his eyes as he watched you shift uncomfortably. It wasn't so much that he enjoyed your discomfort, but he sure wasn't about to take any of it away from you in this moment. "Barton turned you down? That must've stung."

"Do you want to find out what it feels like?" you challenged, stepping up to him with a look that made his smile immediately disappear.

"No, ma'am, I do not."

"That's my girl," Tony added with a quiet whisper to himself as he turned his seat back around. A few quick swipes of his hand over the control panel and a shudder of the jet changed the attitude inside the cabin as it came in to land. Steve stood straighter to secure his gear and then shifted his focus to yours out of force of habit, just to have his hand swatted away. Tony was the next to approach you, only to follow the same pattern and pull away with a sore hand. "Ow, uncalled for," he snapped, instead raising his arm away from you to allow the suit to build around him. "Okay, kids, we're here. Make out time's over, game faces on."

"One more," Steve hurried, his strong arm wrapping around your waist to pull you in closer, slowing himself to hold onto the moment once his lips found yours. He heard Tony mumble some kind of a displeased comment as he passed by and towards the door, but it didn't slow him at all. If anything, it only made him pull you in tighter, making you moan against him with the force of breath leaving your chest under his grip. When another round of disgruntled comments began again, he finally released you, but it took every ounce of strength in him to let you go. "Be careful, doll."

"Always."

~~~

We got separated.

"We're almost there, Cap. Five minutes," Nat answered his frantic call, but even as she spoke to Steve to try to calm him down, she was watching an equally shaken Clint as he pushed the jet to move to the limits of its speed. "JARVIS, please tell me you've got a location on Tony's suit."

"No, ma'am, I've lost my connection to Mr. Stark."

"Any trace on (Y/N)?"

"No."

"How in the hell did he lose both of them?" Clint joined in, shaking his head to try to clear out the images of the worst-case scenarios; his mind was cruel and wouldn't give him any other option to watch. If it were any consolation to himself, he was given some sense of relief in knowing that whatever he was seeing, Steve must be imagining it all so much worse.

"(Y/N) disappeared first," Nat explained, "and when they split up to find her, Steve lost contact with Tony."

"Hopefully they're at least together."

"Yeah, I hope so." She paused and returned her focus to the screens in front of her, reaching up to secure her seatbelts to prepare to land. She could see Steve on the ground in the distance as he waited, and even from so far away, she could tell that he was panicked and spiraling into a hell of self-blame for losing not only you but Tony too. "Barton?"

"Hmm?"

"Is it just me, or do you get the feeling that there's something more going on with (Y/N) and Tony than just being friends? They seem awfully close for a boss and someone who started out as his assistant, right?"

Clint shuddered at her suggestion, his nose crinkled up as he considered it, "ewww, (Y/N) and Tony? Wow, that's kind of a stretch, don't ya think? Besides, isn't he with that spice girl?"

"Pepper?"

"That's the one!"

"Wow, Barton, you're so special," Nat snickered. "But yeah...I think you're right. I don't know what it is though," she sighed, focusing again on Steve, "but there's something with those two that I just can't figure out. Once we find them, I'm gonna get it out of her, mark my words."

~~~

When you opened your eyes again, after the hit that made your head feel like it was being split in two, you were actually a little surprised that it hadn't killed you. The room was blindingly dark and cold, making you second guess that whole being alive thing. Trying to blink away the shadows in your vision, you welcomed the few tears that washed away the dirt in them that hung in the air around you. The chill began to seep into your bones, and with a small movement of your weakened hand, you could tell that you were lying on a damp cement floor, tossed in like nothing more important than a pile of garbage. You felt about as alive as one.

"(Y/N), are you awake?" Tony whispered to you, his voice scratchy and dry. "I'm going to get us out of here, I just need to get the suit back online."

"Tony?"

"I'm here, sweetheart, don't worry. I'll figure this out, okay?"

"Where...where are we?" you coughed out. The air you had been breathing was heavy and acrid, leaving your throat stinging with each word.

"I don't know, but we aren't going to be here long enough to get used to it." You tried to push yourself up just to get off the nasty floor, but it only made you whimper in pain just enough for Tony to catch, and he wasn't having it. "No, just stay there."

"Do you even have your suit?"

"Nope," he said with a false air of confidence, "but the idiots didn't take my watch. How bad of kidnappers do you have to be to not search Tony Stark? I'm like, walking tech. If they're that damn stupid, we're definitely not hanging around here very long."

"Valid point. But if they have the suit, don't you think that they're probably taking it apart-" you stopped, hearing a loud bang just outside of what must have been the door. You both silenced, other than the sounds of your attempts at quieting your already panting breaths. Another bang came, and then another, and with the next, you realized exactly what it was that you were hearing; you chastised yourself for not recognizing the tone sooner. "It's Steve!"

"You sure?"

"I know that your suit has taken a shield to the head, so you have to recognize that, right?"

"(Y/N)?! Are you in there?"

"Hey," Tony shouted back, pushing himself up to stand and fully offended, "I'm in here too, thank you very much!" As if it weren't enough knowing that you were likely behind the door he was slamming down, the sound of Tony's voice sent Steve into even more of a frenzy, finally sending himself barreling into it to crack the lock and leave Tony stumbling back in surprise. "Cap, could you maybe do that a little louder?" he huffed. "I'm not sure if the bastards who took us heard you."

Completely ignoring him, Steve rushed into the room and into the darkness around you, stopping suddenly when he realized that he might accidently step on you. "Barton, a little help?"

"On it," Clint answered, fumbling to turn on his light. "Oh, hey guys! Nice to see you alive! (Y/N), Nat has a question for you."

"Not now," she scolded between clenched teeth, "seriously, why are you like this?"

Steve waved off their banter, annoyed by their voices when there was only one that he wanted to hear.

"It's about time you guys showed up."

That wasn't it.

"(Y/N), I'm here," he whispered, ignoring Tony and kneeling at your side, "are you hurt? Can you move? I'm sorry that it took me so long."

"I'm okay, Steve, calm down. I'm just cold." He held out a hand for you to take, the strength in it inciting a strange jealously within you when all you could feel was this overwhelming fatigue. The warmth of his skin was welcome, almost addicting now as it fed your need to make the bone-aching chill go away. He must have understood without your need to say a word, because he carefully pushed his other hand beneath you, lifting you to him in one clean motion. "You're so warm," you sighed into him, "I knew you'd find me."

"Hey, we helped," Clint argued, with Natasha nodding in emphatic agreement next to him.

"And he found us," Tony joined in, the three of them now standing together at the door, watching you and Steve with their arms crossed, all but blocking your way out until one of you corrected the verbal faux pas that seemed to be piling up.

"I found you," Steve murmured softly against your lips, kissing you as if he had truly believed that he had lost you forever. It was a feeling like he had never known before he met you, this connection that something as simple as the touch of your hand or the feeling of your lips moving so naturally with his could bring; it consumed him every time, and in moments like these nothing else existed-

"Does no one ever listen to me?" Tony groaned, with quiet wretches beneath his voice. "Where's my damn helmet when I need it?"