When Jennifer Lawrence [1] appeared on Watch What Happens Live on Monday, things certainly got interesting. After host Andy Cohen got her to reveal that she's kissed Liam Hemsworth off screen [2], the Joy actress was very candid with a fan who called in wondering if she would ever do the same with Justin Bieber, who recently told a radio station he thought she was "so sexy and so cute." [3] Jennifer's facial expression speaks volumes, but you still have to hear her hilarious response. Watch the video above, then travel down memory lane to see Jen's best moments of 2015 [4]!