Kink #4, Vinnie Terranova/Sonny Steelgrave, NC-17

merricatk requested: Vinnie, Sonny, threesome. 

This is the Wiseguy fandom, for those of you who aren't familiar with those names.  Vinnie is a federal agent with the Organized Crime Bureau, on his first undercover assignment.  Sonny is his mobster target.  They never taught Vinnie at Quantico what to do when your target becomes your best friend.  Their love is canon, and if I recall correctly, this scenario is pretty much canon, too:

( 'Cocktails for Two' )