I had a 3 sum with a friend and his wife about a month back. As i fucked her doggy style he was underneath us licking her pussy when he starting sucking on my balls. at first i was shocked and stopped fucking but they said dont stop so i started up again. As i was fucking her he would take my cock out of her pussy and suck it a little and then put it back in. I never knew he was bi until then. I fucked her until i came and then he sucked my dick clean. He wanted me to fuck him but i said no i was not ready for that, but now i am curious and want to go for it. I am going over to thier house this weekend and i hope i can fuck both of them.