The guy in the movie is really lucky to have two girlfriends who are both beautiful and very promiscuous. Not only that, but both of them are very easygoing and open-minded when they find out he has a second partner. Partly because they don’t want to lose their boyfriend, and partly due to their inherent promiscuity, they resolve everything quickly and satisfactorily. Neither of them is jealous or uses inappropriate language; instead, they cooperate for mutual benefit, deciding to give their bodies to him together. As for that lucky guy, even though he's juggling two girlfriends, he is very happy not only to have threesomes but also to help strengthen the bond between the three of them.