United Kingdom, May 9 -- Holly Madison has opened up about her awkward sex life with Hugh Hefner.

The 45-year-old star - who rose to fame on 'Girls Next Door', the reality show focused on the lives of Hefner's girlfriends at the Playboy Mansion - admitted she and the other women found the group sex with Hefner "really weird".

Speaking on the Let's Be Honest With Kristin Cavallari podcast, she explained: "It would be kind of silhouetted because you'd have, like, these giant screens of porn going and it would be just girls like talking s*** with each other.

"It was a really weird scene and nobody liked it and everybody tried to just get it done as fast as possible.

"Kind of like taking turns and then the girls who weren't active with hi...