TMZ reports sources have told them that Sienna is not sexually involved with Sean "P.Diddy" Combs, and she did not, in fact, have sex with Hayden Christensen during filming of the 'Factory Girl' sex scene.

Whew! This girl is working overtime trying to dodge the gossip bullets!

Rumors have been flying since photogs caught Diddy and Miller ducking into her hotel after a night of partying, and rumors have also surfaced that the sex scene in her film was a little "too real."

Her reps say that she is such a great actress that the scene just shows how convincing she can be. They go on to say that she and the new daddy are just good friends.

Labels: Hayden Christensen, P. Diddy, Sienna Miller