Rihanna and A$AP Rocky got busy late last week in more ways than one! Hollywood Life reports the singers were caught making out on and off screen on the set of their new music video, Work! A source tells the site that even though the two have an incredible relationship and are extremely close, they are not dating! Last summer similar rumors circulated but at the time A$AP said he doesn't look at her like that. Well, we hope not since he is dating model Chanel Iman!