Actor Charlie Carver set tongues wagging when he described his "hot as hell" threesome scene with James Franco and Zachary Quinto in the forthcoming "I Am Michael," which premiered to great fanfare at the Sundance Film Festival, in a HuffPost Live interview last month.

In a candid "Watch What Happens Live" chat this week, Quinto opened up to host Andy Cohen about the much-buzzed-about love scene, and cheekily implied that this wasn't Franco's first man-on-man experience.

Quinto said that he and his co-stars kept their underpants on during the filming, and that the use of tongue was only "moderate."

Directed by Justin Kelly, "I Am Michael" is based on a New York Times Magazine piece titled "My Ex-Gay Friend." In it, Franco stars as controversial "ex-gay" activist Michael Glatze, and Quinto portrays his lover.

Of Franco's oft-discussed interest in queer roles and issues, Quinto previously told HuffPost Live, “My feeling about James, in particular, is that he’s someone who is really interested in generating a dialogue."

He added, "So I feel like putting it out there, and putting it out there in different ways, is something that’s interesting and something that I don’t think people should shy away from."