"Straight Best Friends With Benefits". When a gay guy and a straight guy become friends. And the straight guy is bicurious, but has a girlfriends, and the gay guy helps out the straight guy by providing sexual favors, along with a "Straight" best friend"
Straight Guy: "I really love my girlfriend, but i really like doing stuff with guys"
Gay Guy: "I can help you with that..."
Straight Guy: "You're me SBFFWB!"
Gay guy: "Can we still have sex?"