Laguna Beach & The Hills Lauren Conrad Sex Tapes

Lauren Conrad, the star of reality television shows Laguna Beach and The Hills, is trying to stop a sex tape allegedly made with boyfriend Jason Wahler from being released on the internet, it has been reported.

Gossip blog site Perezhilton.com reports Conrad, whose nickname on her shows is "LC", believed she owned the only copy of the sex tape but Wahler also has a copy.

A source told the website that Wahler, who has been arrested three times in the past 12 months and was recently sentenced to serve time in prison, is trying to cash in with the sex tape.

"Jason is trying to sell the video before he goes to jail," the source said. "LC will lose her mind when she finds out."

Wahler could release the tape for free if he can't find a buyer, Perezhilton.com reported.

The website reported Conrad was so desperate to get the tape back she attempted to break into Wahler's house.

Laguna Beach and The Hills both screen on MTV in New Zealand