You may have not been his child by blood, but there was no difference to Steve. You were his, and he'd never considered you any different.

You were found by the Avengers as a young child, abandoned by your paretns during the Chitauri attack on New York. But instead of palming you off to the foster care system, they decided to take matters into their own hands.

After all, how hard was it for six geniuses to raise a kid?

Steve was the one that advocated for this the most. Maybe it was his duty, or failed dream of starting a family that may or may not have been projected onto you, but he convinced everyone else.

Turns out, raising a child and protecting the rest of the world at the same time was a massive mistake.

You didn't make it easy for Steve, who'd personally taken on the challenge after everyone gave up. You were stubborn, independent, and refused to take orders from anyone.

You didn't grow up to be the sweet, innocent teenager he'd hoped for. But he liked to pretend.

"She took my fucking car," Tony cursed, storming into the common room where everyone was. He pointed at Steve. "Your prick of a kid took my damn car, and my apprentice."

Steve could feel the peace drain from his body. "She what."

"She took my car, and then dragged Peter with her!"

He dragged a hand over his face and through his hair, standing from the barstool. "I'll deal with this."

"Yeah, you will."

Twenty minutes later, Steve was following the tracker Tony had on his car. You were doing 85 mph on the highway, and he could just feel his blood pressure rising.

He finally spotted Tony's grey Audi r8, zipping in and out of traffic with little care. He stepped on the accelerator and floored it, just to keep up with you.

You managed to stay still just long enough for him to pull up beside you. Your windows were already down, so he rolled down his.

"What the hell are you doing!?"