Tony Stark

You were sitting in the room chatting with Peter when Thor came to visit with his daughter. His daughter's name was Lolita, and she was only five years old, but she was so active. Tony Stark was in the workshop with Thor, and you were left with Lolita. She quickly took a liking to you, and you gave her some baby headbands and makeup.

An hour later

You walk into the living room and see Lolita sitting on Thor's lap, putting bows and hairpins on him, and Tony wearing a bunny headband. You quietly snap a photo and send it to the Avengers chat:
Nat: - Aww, they're so cute.
Loki: - I won't even ask who the living are...
Doctor Strange: - How children behave...

Tony Stark homeschooled his daughter out of fear of her being bullied. He has a mentor, Peter Parker. He tries to be a father figure to Peter, too, since Peter doesn't have one. Tony Stark was often busy in the workshop, finishing things up, or manipulating the system to ensure the safety of both Peter and you, restricting access to the suit's core functions. After all, they're very expensive and made of high-quality material.