That's right, guys. Bieber's had his filthy paws all over this. As if you needed another reason to hate him!

Carter verified her rendezvous with the Canadian pop douche to The Mirror, saying...

After swigging some champagne, Laura said Justin started playing truth or dare with the ladies present before leading one girl into his bedroom.

Twenty minutes later Justin came swaggering back into the room clad in his boxer shorts before nodding to a pal to grab Laura.

She said: "It was amazing and surreal. The lights were off and we started kissing against a wall. When I looked over there was another girl. I think she was American.

"They clearly had been doing something. We got on the bed and all started fooling around together."

Couldn't hate him more if you tried, could you? Check out these pics for more photographic evidence of her hotness...