This Means War costars and friends Chelsea Handler and Reese Witherspoon were cracking up last night chatting about their sexy movie, social networking, and nude pics on Chelsea Lately. Chelsea said this is Reese's sexiest role yet (and having seen the movie, we have to agree!), especially the scene in which Reese is dancing in her underwear that Chelsea said "gave her a boner." They also discussed Chelsea's affinity for posting inappropriate pics on her Twitter and Facebook, and Chelsea said she's tried but failed to get a naked photo of Reese. Watch the clip now to hear what Reese said Chelsea would do with a nude pic of her if she ever succeeded in taking one!