Gene Simmons claims Cher was happy when proved to her he had slept with 4,600 women.
The Kiss rocker insists the 'Believe' singer, who he previously dated, was happy to know about his huge number of conquests because it proved to her he was honest.
He said in an interview with German newspaper Bild am Sonntag: "She was shocked, but also happy because she knew that I would never lie to her.
"And that's how it is. Liars are only men who swear eternal fidelity but they know that no man will ever be able to adhere to that."
The bass guitarist admits many people don't believe he has bedded so many ladies, but he can prove it because he takes a photograph of every one of his conquests.
He said: "Esquire magazine has just tried to prove empirically that this was physically impossible. But they had to admit that it works. And it's true. I'm honest and show my girlfriends this photo album."
Gene, 60, is famous for his 'Demon' black and white face paint and he admits he has applied his trademark make-up to many girls he has bedded.
He revealed: "I have painted it on women's faces who wanted to wear it for the sex. Once I had a girl who had a tattoo of my face between her legs. I just felt sorry for her boyfriends."