Yeah, I think a lot of fic tends to get them into bed and take that as the end of the story, but I'm not sure it really can be, particularly for Tony, who, the movie just hammers into us, has totally disconnected sex from emotional intimacy. And Pepper is not only freaked out about sex with him when she thinks he's just Tony Stark, but throw on the anxiety of having him be Iron Man?

Anyways, I'm really glad this worked for you. :D