My first real experience as a bi came with my exwife during a group session. She had always wanted to see me getting fucked but I could never bring myself to do it, not that I didn't want to try it just too cautious I suppose. She had seen me suck cock and balls before, during and after the guy had fucked Jen so she was always trying to get me to take one up the spout
During the group session, in a caravan on a campsite with our van and a tent full of young guys, otherwise the site was deserted. Half way through the session Jen decided to straddle my face and let me lick her clean. She was knelt on my arms with her wet shaved pussy covering my mouth and facing my legs. Everyone was naked and I had already noticed a couple of the guys wanking each other as they watched and waited for their turn Jen.
As I was locking Jen I felt my legs being opened up then a mouth clamping on my cock and another on my balls, they were good, VERY good and I was soon starting to cum. I knew it wasn't Jen as she was still knelt upright but I couldn't move as she had me pinned down. As I started to cum the mouth came off my cock and a hand started wanking me really hard and rough from top right down to the base, stretching my foreskin really tight so it was stung but this just made me shoot hard and high, even Jen said "wow that went high". I started to relax when I felt my legs being lifted high and very wide. I couldn't fight it because I was pinned down. Something wet was spread around and then into my anus, all the time the hand was roughly wanking me, squeezing hard on the upward stroke like milking a cow. I felt something being pushed into my anus, OMG it felt like a traffic cone. My anus was stretched beyond any time before (I found out later it was a big cock) and it was sliding in and out. I shouted for them to stop but Jen just said "He will be fine" so they carried on and on and on my anus felt like it was on fire. I felt him cum inside me. It was very warm and satisfying making me cum again. I felt another one slide into me, a lot thinner so I could enjoy this more and again I could feel him cuming inside me. 5 times in all this happened, not too sure if I should of hit them but instead I thanked them as they turned their attention back to Jen again. I was sore for a week but good memories