According to an article in Esquire, Brad Pitt has placed a self-imposed ban on filming sex scenes with other women out of respect for his partner and mother of his six children, Angelina Jolie. So no other woman gets to kiss those lips and touch that body as long as he's with Angelina. How noble!
Brad 's friend told Esquire: 'This is a guy who has tried not to do any sexy scenes with other women since he's met Angelina. He's crazy about her, and she's the same way about him.'

Kinda understand his fear. Brad was married to Jennifer Aniston when he did Mr & Mrs Smith with Angelina Jolie. He admitted falling for her after their steamy love scene. By the time the movie wrapped, they were in love.

(source: lindaikejiblog)