The aging Playboy mogul's ex hit Howard Stern's radio show yesterday to slam the 85-year-old's in-the-sack skills.
And her statements seemed to strike a nerve, sending Hef to Twitter to sound off! Here's the recap…
Harris, who can be seen on the July Playboy cover in just a black lace bra and sailor hat, told Stern that although Hef appears to love women and has an air of sexuality about him, when it comes down to getting busy, he's not very good.
"Hef doesn't really take off his clothes. I have never seen him naked," Harris said.
That's not all. Harris also revealed that during the two-year span of their relationship, she and Hef only had sex one time and that she quickly pulled away because she wasn't physically attracted to him.
"It lasted like about two seconds," she told Stern, who did not sound surprised.
"I was over it," she said of Hef's skills. "I just like, walked away. I am not turned on by Hef. Sorry," she added.
When Stern pressed her for what she though turned Hef on, she told him the magazine mogul likes to cuddle with his ladies and likes having his girlfriends hang with him at home.
And although she told Stern she does love Hef, he believes differently, and took to Twitter to talk about Harris and her interview.
"When I said 'I missed a bullet' when Crystal left, I didn't mean I didn't love her. I meant I realized she really didn't love me," he wrote.
He later tweeted: "I feel sorry for Crystal. She seems lost."
Hef also called Harris a liar, writing: "Crystal convinced me that she adored me. That was the first lie."
He now claims he's in a "better place," watching movies in the mansion with new girlfriends Anna Sophia Berglund and Shera Bechard.
Harris has been romantically linked with Dr. Phil's son Jordan McGraw.