One evening at our home with a bunch of gay and bisexual men and I've changed my sexuality for good. If I'd have known for the last 14 odd years how good it feels to have a cock fucking my arsehole, my whole life would have been diffeent. Most of my wife's best friends are male, biseual or gay. That's because they're all stewards and stewardesses. The party was for my 30 birthday and my present from my wife was to be a very attractive female collegue of hers. We've always been an extremely open and sharing couple, so my wife thought it would be good and horny to watch me fuck one of her friends. She was ill so one of the stewards jokingly offered his arsehole for me to fuck. It turned out after I'd called his bluff, it was my arsehole that was in for a damn good fucking. I was very tipsy from the wine I'd been drinking and my wife thought it was a fantastic idea. Not wanting to back out after I'd called his bluff, I took him, another male steward and my wife to bed when everyone else had left. Given the state I was in I don't fully remember all of what happened, what I do remember was the incredibly strong orgasm I had from being fucked repeatedly as my wife watched. In one night my sexuality changed for good and five months on, I'm still enjoying immensley taking a guys cock up my super willing butt, sometimes with my wife watching, other times when she's at work. I don't cheat per say, I tell her everything when she gets home and then she has me fuck her as they've fucked me.