Group Sex is a 2010 American comedy film written by Lawrence Trilling and Greg Grunberg.

Trilling also directs, while Grunberg co-stars alongside Josh Cooke and Odette Yustman.

The story begins with two roommates and business partners, Andy and Jerry.

Andy hears Vanessa singing at a bar and, lovestruck, follows her to a church, where he realizes she has joined sex addict meetings.

He takes on the persona of his sex-crazed roommate, but soon finds his efforts to help his new friends and to woo Vanessa are putting his job and work partnership with Jerry in jeopardy.