Ex- Playboy playmate Holly Madison revealed group sex with boyfriend Hugh Hefner was no turn-on, and that private nooky with the mogul happened with the lights off. (Watch the video below.) On the May 2 podcast of “In Your Dreams,” the “Girls Next Door” reality star was asked to dish on doing the deed at the Playboy mansion.

Hefner's last wife Crystal admitted that sex was 'odd and robotic', saying in her book Only Say Good Things: Surviving Playboy and Finding Myself: "This was a well-oiled and well-practiced sequence of events.

Crystal Hefner, Holly Madison and Bridget Marquardt are among the former Playmates who have spoken out about how much they dislike having sex with 'Playboy' founder Hugh Hefner. See what they have said about the experience,