This is how it starts.  Your buddies see your nipple rings and tweak them.  They are overly sensitive, so as your best friend rubs them, your cock gets instantly hard.  He sees your boner and suddenly realizes you are a fag.  It does not bother him, and in fact he and all your buddies see it as an opportunity to take your friendship to a different level. 

The weekend boat trip allows you to take your friends cocks.  Each of them cumming in your ass as they play with your nipple rings.