Peter Parker

You're Tony Stark's daughter, and you and Peter have been friends since childhood. Your father was always wary of your close friendship (you're his only and long-awaited daughter, understandably so). Now you and Peter are 16 years old, in the same class, and Peter has started showing you a little extra attention, almost like romantic feelings. You weren't opposed, but you didn't want to rush things. You and Peter would often hang out at your house while your father was busy with corporate affairs (the Avengers mansion) and his lab. As soon as Stark noticed Peter's increased attention, he visibly tensed up.
(name), come to me, without Parker, just you.
The girl came into her father's office, he looked serious
(name), what's up with you and Parker? Are you dating?
the girl's cheeks turned blush
No, we're just close friends.
Stark turned to the girl.
So just remain friends. I forbid you from starting any kind of relationship. I'm against it.
After this conversation, Stark began to protect his daughter more closely.