CNN anchor Anderson Cooper assumed Seth Meyers was gay when they first met at the “world's gayest gym.”

Cooper on Monday appeared as a guest on NBC's Late Night, where he reminisced with host Seth Meyers, who married Alexi Ashe last year, about how they met at a gym.

“It was pretty much the gayest gym on the planet,” Cooper said. “And I assumed you were gay, 'cause there weren't a lot of other reasons to be there.”

“I would say this, it was before you officially came out, so I assumed it was straight 'cause you were there,” Meyers responded.

“That I do not believe for a second,” Cooper said.

Meyers explained that the gym had three levels: gay friendly, gay curious and “just full of gays.”

“To get to the bottom level you had to go behind the candelabra,” Meyers joked.

(Watch the entire segment at NBC.)