Lloyd 'acts bouncer for Rihanna, Brown'

Danielle Lloyd reportedly acted as a bouncer for Rihanna and Chris Brown at an afterparty in London.

Rihanna asked the British glamour model to keep track of any girls that were spending time with her boyfriend after his concert at the O2, according to the Daily Star.

"[Rihanna] was a bit wary of Danielle to begin with, because she's really hot," said a source. "But she took a shine to her and let her come backstage. Then poor Danielle spent the entire time being Chris's bodyguard.

"Rihanna kept asking Dani to keep her updated on which girls were talking to Chris and why. Danielle was the only girl Rihanna let Chris have a picture with. And even she wasn't allowed in his company for too long."

Earlier this week it was rumoured that Rihanna has banned X Factor winner Alexandra Burke from meeting her R&B star lover.