Steve/Tony
"It's just watching movies, Tony. I don't see how that's too friendly.." Although, had Steve been aware that Yelena had felt the need to ask Natasha if Steve was flirting with her upon her arrival, he might have been a little more careful with how much attention he was giving her. With everything that was going on, mixed signals was something he was trying to avoid, not stir up.
Steve moved, just enough to rest his chin on Tony's shoulder. "You could always come too, you know. If you think we need a chaperone."