Watch : Justin Timberlake, Mila Kunis Get Naked 'Friends With Benefits' Trailer

Natalie Portman's run in "No Strings Attached,"with Ashton Kutcher, "Black Swan" co-star Mila Kunis is starring in her own sex-with-friend comedy, "Friends With Benefits." The film, which comes out in May, has delivered its second trailer, teasing potential laughs and enviable bodies.Fortunately, this trailer for Friends With Benefits makes it clear that this particular emotionless sex comedy