Jennifer Aniston wasn’t kidding when she giggled to friends about hours of endless orgasms with BF John Mayer. The “Clarity” rocker has a sexual prowness that has a way of making every woman feel like her “Body is a Wonderland,” a friend of Mayer’s says.

“John is good in bed,” an OK! spy says. “Not just good, but sensational. Every girl I know who has slept with John says it was the best sex of their life. I’m not sure what exactly he does in bed, but after girls sleep with him, they’re ruined. They get totally hung up on him and want more! Whatever John’s secret is, he should market it. He could retire from the music industry.”