In an interview with OK! magazine, Brad said, "If you look at the couples who work together it always seems to come out crap.
"Maybe it's because there's too much baggage in the way.
"It's like the sex scene with Alec Baldwin and Kim Basinger in The Getaway - I don't want to see it! But put her with anyone else though, and I'm paying!"
Brad also revealed that he had only ever had two fights in his life - and both were over girls.
When asked is he was ever a school bully, he replied, "No. I've only ever had fights over girls.
"From memory, I won one - probably because I took a cheap shot like grabbing the guy's nuts - and lost one. The only serious damage was to my ego."