Omarion Pranks Houston

R+b star Omarion left his pal Marques Houston in an awkward position, when a trip to a restaurant turned into a paternity battle.

As part of a prank for Ashton Kutcher's hit show Punk'd, former B2K frontman Omarion asked Houston to accompany him to a Hollywood eatery, where he'd planned to dump a woman he was in a relationship with.

But things turned sour almost immediately when the lady in question announced she was pregnant with Omarion's child.

But things turned even worse when the woman's furious ex-boyfriend arrived at the restaurant with a used pregnancy test kit in his hand, accusing Houston of being the child's father.

After things became heated and Kutcher arrived from behind the scenes to reveal it was all a joke, a relieved Houston admitted, "I'm just happy to know it's not true."