• Lance Bass

Lance Bass (Photo : Reuters)

"Watch What Happens Live!" host Andy Cohen, 46, recently revealed that he had sex with former NSYNC member Lance Bass, 36.

In the episode of his show on May 5, Tuesday, the Bravo host answered questions from "Real Housewives Of New York City" star Sonja Morgan, 51, one of which was who was the most famous person he ever slept with.

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Without hesitation, Cohen answered, "The most famous person I ever slept with I guess is Lance Bass."

One day prior to this "Watch What Happens Live!" episode, Cohen attended the 2015 Met Gala at the Metropolitan Museum of Art in New York City where he walked the red carpet with his best friend "Sex And The City" alum Sarah Jessica Parker.

Earlier that same day, Cohen tweeted, "Getting ready for the #MetBall - I hope I don't embarrass @SJP."

During 2015 Met Gala event, Cohen wore Ralph Lauren and paired it with a Cindy Chao brooch, according to Just Jared.

Meanwhile, Bass's fellow former NSYNC member Justin Timberlake's wife Jessica Biel reportedly hired two male nannies for their son Silas Randall Timberlake.

Apparently, Biel did not want to have to worry about Timberlake being around female nannies, according to OK! magazine.

Aside from Bass and Timberlake, other former members of NSYNC are JC Chasez, Chris Kirkpatrick and Joey Fatone.

Among the five former NSYNC members, only Chasez is not married yet. Fatone married Kelly Baldwin in September 2004, Timberlake married Biel in October 2012, Kirkpatrick married Karly Skladany in November 2013, and Bass married Michael Turchin in December 2014.