We knew they had kissed but, okay! Andy Cohen revealed to Sonja Morgan on Watch What Happens Live! who the most famous he’s had sex with, and turns out, it’s Lance Bass!

The Bravo host, who admitted to kissing the 'N Sync alum back in 2012, was being questioned by the Real Housewives of New York City star for a change and let loose on all his past escapades.

While first attempting to tell self-declared cougar Morgan that the craziest place he’s had sex was on an airplane — Morgan wouldn’t settle for that — Cohen admitted: “Under the stands at Hollywood High School.”

Things only got wilder from there. "When's the last time you had sex because I'm very worried about you Andy and your mattress action,” Morgan told the host. “I just think you're not getting enough.”

Thank You!

You have successfully subscribed.

After Cohen assured her that he had sex just last Sunday, he dropped the Bass bomb.

"Who's the most famous person you ever slept with?" Morgan asked him, before Cohen answered: "The most famous person I ever slept with I guess is…Lance Bass!”

Watch his confession above!

ncG1vJloZrCvp2PCtLnAoJizoZ6ae6S7zGianqSVl7%2BqwNhmpZ6vo2S7psPSaJinnKlisLC0xKdkq52mmq6tv4yhnGagkZl6tLHXZq6irJhiuaK6wp5km5mjqHq4rdOcn2ZqYGaCd4E%3D