London, February 18 : Katy Perry has slammed rumours linking her with Paris Hilton's former beau Benji Madden, saying she was `not bumping uglies' with him.

The singer was spotted canoodling with the Good Charlotte rocker on Valentine's Day in Las Vegas club Lavo.

However, the `I Kissed A Girl' insisted there was nothing but friendship brewing between the two, for her heart was already reserved for her pet cat.

"It's two pseudo famous people sitting next to each other... doesn't mean we were bumping uglies! You know I don't just do that with anyone!" the Sun quoted her as saying on her blog.

"I was there celebrating a really fun show and a boozy Valentine's Day with all my good friends. We were like a group of 25!

"Benji is a nice young fellow, but my heart really belongs to kitty purry/markus molinari," she added. (ANI)