Several years ago I went to Fantasy Fest in Key West. For those that don't know what it is, google some pictures. I went with my ex-girlfriend Tina - the only one of my exes that know about my bi side. She had been asking for me for years to go with her, finally I agreed.

The first night we both dressed in leather outfits and went to observe the scene. I was blown away by all the public sex - MM, MF, FF - you name it. It was perfectly normal to be in a bar or club and seeing a man with dog chain around his neck, the other end being held by a woman, blowing a guy or eating a woman right there in the bar.

Back at our place I told Tina that the idea of performing public sex really turned me on. The next night she dressed me in thong panties, garters, a bra, a wig, and women's shoes. I also had one of those "phantom" style face masks - I didn't want any photos or way to identify me getting out. The thong was my only underwear so my cock flopped in and out at times. I was fully "out there" for the world to see. At each club or bar we went to, we'd eventually get around to me being bent over a table with her having pulled my thong aside and slowly fucking me with a small butt plug she'd brought. If a small crowd gathered she'd point at someone watching and ask them if they wanted to try. I'd glance back and see sometimes a guy, sometimes a woman holding her toy and gently fucking me with it. It was so hot knowing perfect strangers were standing mere feet away and a watching a sex toy penetrate my ass.

At about our 5th stop of the evening she whispered asking me if I wanted to "take it to the next level". I was having such a great time, and having had a beer at each stop already, had my inhibitions fully lowered. After I'd finished this stop's beer it was time for the show. She had me bend over a table and made a big show of spanking me and saying I'd been bad. As at the prior stops, I felt her fingers pull aside the thong, then spreading lube around my hole, then felt the plug gently easing in. A couple minutes of this and we have a decent sized audience of around 10 people.

As at prior stops, Tina asked if anyone in the audience wants to take over. A middle-aged woman wearing only a bikini and running shoes says yes. Soon she's holding the butt plug and gently fucking me with it. I'm so turned on at all these strangers watching my asshole be filled. Soon I notice a middle aged guy wearing only leather shorts, I assume him to be with the woman fucking me. He has his cock out and is stroking himself as he watches her work. Tina walks directly up to him and asks if he wants to fuck me. I see the surprise on his face, and he shakes his head "no". The woman fucking me says "come on baby, it would be hot". Eventually he nods his head. Oh Mark what are you doing - maybe this has gone too far? Imagine if my colleagues or friends ever learned of this! Before I could protest Tina had produced a condom from her purse. As he rolls it onto his rock hard cock, Tina applies some lube to my hole and rubbed some all over his cock, then holding him by the cock as the audience applauds she guides his head to my hole and stands aside. With no hesitation he slid his cock all the way into me. It hurt a little, but I was so used to the butt plug all night it soon felt good. His wife/girlfriend slapped my cheeks a few times as he pumped away. The knowledge all these strangers were watching my ass get used for a man's pleasure was such a turnon. My rock hard cock was fully out of the my thong and dripping precum. It wasn't long - less than 2 minutes before he slid in all the way and held it, I knew he was cumming. He slowly withdrew his cock from my ass, the audience was cheering, and he made his way to the men's room. Tina whispered "come on, lets get you cleaned up" and led me from the bar back to our place. After a hot shower, she and I had an amazing fuck session before falling asleep.