Kendra Wilksinson recently dissed Holly Madison, her former Girls Next Door costar. In a clip for an upcoming episode of Kendra On Top, one former Playboy bunny calls out another.

The clip shows Kendra Wilkinson on her way to confront Holly Madison. Kendra maintains that Holly told “disgusting” lies in her recent memoir, Down the Rabbit Hole: Curious Adventures and Cautionary Tales of a Former Playboy Bunny.

Kendra Wilkinson-Baskett isn't holding back on what she REALLY thinks about Holly Madison: http://t.co/4gdmnblA79 pic.twitter.com/h3aFZOiQhP

— E! Online (@eonline) September 24, 2015

“What Holly is saying is extremely false,” Kendra Wilkinson says in the clip. “I’m like, ‘Where did this s–t come from?'”

In the book, Holly Madison accuses Hugh Hefner of emotional abuse and even of giving her what she refers to as “thigh opening drugs.” Madison says things got so bad during her time as Hugh Hefner’s girlfriend that she considered taking her own life.

“Someone needs to have a voice against this. Hef won’t do it. He’s too nice of a guy,” Kendra Wilkinson says. “It’s just weird how someone can get away with such a thing.”

Kendra Wilkinson winds up approaching Holly Madison at a book signing in the aforementioned clip.

Kendra Wilkinson calls out Holly Madison's 'disgusting' lies in her new memoir http://t.co/wvDiWC7uPT #KendraOnTop pic.twitter.com/1Cez14aEol

— People magazine (@people) September 25, 2015

“This is disgusting,” she says prior to unleashing on Holly Madison. “I’m not going to let this bitch get away with something like that.”

Are you a Kendra On Top fan? Fans will have to watch the upcoming episode to see what Holly Madison’s reaction is to being ambushed at a book signing by Kendra Wilkinson.

Do you believe Kendra’s account of Holly Madison telling lies in her memoir?