The 'Heat' star said she would not ever try to be sexy on screen but thinks nakedness can be funny in films, reported Contactmusic.
"There's nothing sexy about it at all--it's funny. It's not intimate. I don't do naked for sexy. Naked only works for me in the funny. On film, not in real life!," she said.
Bullock claims she would never make a sex tape because she does not look good during intimate scenes.
"I can't imagine, that someone would look good whilst having intercourse not knowing they're filmed. But you notice, anytime someone has a sex tape, it's beautifully lit, they got the good angles, it's like, 'that's right,' over the shoulders are great... Who does that? Who does that?!," she added.