Actor/comedian Ricky Gervais was on “Conan” Tuesday (March 11), where he shared a funny anecdote about colleague Louis CK — everything you ever wanted to know about CK being naked.

“I saw him naked in the show, which was horrendous. … I was this crazy doctor, I had to give him a rectal examination. Ugh, it was horrible,” says Gervais. “He took his trousers down and they’d sort of hidden it with some sort of tape, which made it look worse. … It looked like an old bag that was thrown away. And it was hot and clammy … I could smell everything. … Just sweat and shame.”

Gervais also talks about how a role he has yet to play that he’d be interested in is a super villain and his super power would be annoyingness: “I’d be annoying. I could do that. … Batman would go, ‘Oh, f*** this.'”

Conan O’Brien then demonstrates that Gervais’ kryptonite is being tickled — for real. He’s very ticklish. Hee!

Gervais can be seen in “Muppets Most Wanted,” opening nationwide Friday, March 21.