Ryan Phillippe Sex Tape!

Ryan Phillippe was caught in a bogus sex tape prank as part of an April Fool’s Day joke by Jimmy Kimmel.

Reese Witherspoon’s ex-husband appeared on Kimmel’s chat show on Tuesday and was confronted by the host who showed ‘leaked’ raunchy footage of the actor in a compromising position with a middle-aged woman.

Playing along with the prank, Phillippe pretended to be embarrassed and denied any involvement in the X-rated videotape.

He said: "Oh man. First of all, it is not me. I know it looks like me, and people say it sounds like me, but it's not me."

In the saucy ‘sex-tape’, Phillippe sets up a video camera before getting down and dirty with Veatrice, Kimmel’s security guard.

However, Veatrice is less than amused with his romping performance.

She quips: "Let mama show you how it's done... I want you to get the f**k up off my leg, Ryan Phillippe! You're crushing it, you son of a bitch, get off! Get the f**k up off of me! What you been eating? Your breath smells..."

So that's why Reese left him. See the hilarious clip below.