• Holly Madison recalled her first date with Hugh Hefner during Monday's episode of the "Power: Hugh Hefner" podcast
  • She said she initially agreed to go out with him after another one of his girlfriends left the Playboy mansion in 2001
  • She described their first night together as a "traumatic experience"

Holly Madison is sharing more about her experience as a Playboy Bunny and one of Hugh Hefner's many girlfriends.

The "Girls Next Door" star, who dated the late Playboy magazine founder between 2001 and 2008, talked about the early days of their relationship during her appearance on Monday's episode of the "Power: Hugh Hefner" podcast.

Recalling her first date with the late media mogul, Madison, 41, revealed that she initially agreed to go out with Hefner after there was a "spot open" when one of his girlfriends had left the mansion in 2001.

"I didn’t really know what went on with them sexually," she was quoted by Us Weekly as saying. "I figured something, and I was prepared for that. I wasn’t prepared for what would eventually happen."

Madison joined Hefner and some others at a club before the group returned to the Playboy Mansion. She said she knew that the evening wouldn't be a "very traditional first date," but she still "wasn’t necessarily expecting to have sex that night."

According to the model, however, they did have sex, which she described as a "traumatic experience."

"I was wasted," Madison recalled of the alleged encounter. "He was literally pushed on top of me. After it happened, I was just mortified and embarrassed and it had way more of an emotional impact on me than I thought it would."

She went on to say that she had "always admired" Hefner and had "really looked up to him" long before she became one of his girlfriends. But she said she was "horrified" by the idea that the others knew what had happened between them.

"It was more the group aspect that was really out of my comfort zone," she explained.

This wasn't the first time Madison has opened up about her time with Hefner. She previously detailed her experience in her 2015 memoir, "Down the Rabbit Hole: Curious Adventures and Cautionary Tales of a Former Playboy Bunny," as well as her "Vegas Diaries" memoir in 2016.

In her 2015 book, the model spoke about the myriad of house rules that they needed to follow at the Playboy mansion and the alleged verbal and emotional abuse she suffered from Hefner.

"It turned out to be something that was traumatic for me in a way that I wasn't really prepared for...I felt really ashamed of the choice I made," she said on OWN's "Where Are They Now" series.

Hefner passed away in 2017. His final resting place was next to Marilyn Monroe, who graced the cover of Playboy's inaugural edition in December 1953.

Hugh Hefner and Holly Madison
Holly Madison claimed on her memoir that she saw Hugh Hefner's last will and testament. Pictured: Hefner and Madison pose during a press conference introducing the new season of Hefner's TV show "Girls of the Playboy Mansion" on E! Entertainment on Jan. 11, 2007 at the Palyboy Mansion in Beverly Hills, California. Getty Images/Gabriel Bouys