A/N: Okay, I know it's been forever, but to make up for it, I'm going to do one big upload today and post the rest of the story seeing how it's done. I love you all and thank you for the support.
Tony:
Tony asked (forced) everyone to move into Stark tower after the events of New York. When Natasha said she would rather stay at her own place, he convinced (read: annoyed) her into moving in on the single condition that she be the one to make the plans for her area. Tony was perfectly happy to agree.
It was only a couple days after Natasha had moved in that he went down to her floor to tell her about the mission the Avengers had just been assigned. Just as he got off the elevator, someone with jet black hair wearing nothing but a pair of underwear ran past him. Natasha was hot on the kid's tail. "Dmitri Nicolai Romanoff, if you do not get back here right this instant, I promise you that you will not be allowed to watch cartoons for a week."
"I don't want to go to the doctor's, Mommy."
Natasha finally caught up to the kid and grabbed him, wrapping her arms around him and picking him up. "I know, but you fell, Mommy just wants to make sure you're okay."
Tony chuckled. "Mommy Natasha, I never saw that coming."
Natasha gave him her famous glare. "What are you doing here, Stark?"
"I came to tell you that the Avengers have a mission."
"You've got to be kidding me."
"Nope. What happened to little man, anyway?"
"He fell down the stairs yesterday and hit his head pretty hard. I wanted to make sure he was okay."
Dmitri looked to Tony. "No doctor's?"
Tony laughed. "I'm sure you can find someone to take him."
"Ooh, is Pepper here?"
"Yeah, why?"
"She can take him."
"She knows?"
"Since I was Natalie Rushman."
"What? I am wounded."
Natasha rolled her eyes. "Dmitri, this is Iron Man, Tony, this is my son Dmitri."
Tony looked closely at the boy. "Well, he does have your eyes."
"Shut it, Stark."
He shrugged. "Fine, don't take my word on it, but those green peepers are pretty familiar."
Natasha sighed. "Just get Pepper down here."
Tony grinned. "So, this must mean that you and Birdboy have been doing it for a while, then, right?"
He fled the room, a shoe bouncing off his head as he ran.