Piven guest starred on an episode of the show, in which Messing's character Grace agrees to engage in a threesome with the Entourage star's character and his girlfriend.

Messing and Piven shared an intimate kiss in the show, but the experience was not enjoyable for the actress.

She says, "I had to kiss a lot of boys on that show and we were rehearsing, and the very first day of rehearsal, he shoved his tongue all the way down to my heart.

"I was just like, 'Whoa!' He goes, 'Yeah, yeah'. He was like, 'That's it, I'm in'. I was like, 'You know, this is comedy. We don't really go that deep', and every time he went for it."