Buffy beauty Sarah Michelle Gellar has a scene in her new movie Scooby-Doo where her character, Daphne Blake, runs through a tunnel naked with her backside clearly displayed. BUTT - it's not really Buffy's bottom you'll be seeing! A butt double was used for the Scooby-Doo nude scene - which is good nudes for her fiance, Freddie Prinze Jr.

Freddie, 25, who co-stars as Fred Jones in the film version of the hit '70s animated series, is doggone thrilled that Sarah seems to be following in his no-nudity-clause footsteps. Freddie, 25, insisted on a body double for his two nude scenes in the flick Summer Catch. "No one gets to see my butt except Sarah," he says. "I have a no-nudity clause in my contracts and it's non-negotiable."