My wife was away for the weekend so the guy who has been developing my bi side for the past couple of weeks told me he had arranged a special evening for me so be ready when he called. He is married like me and mid forties, he liked to be in control when we met previously and tonight was no exception. When he picked me up I was dressed exactly as he had specified, red stilettos, black stockings with tiny red panties and a red lacy suspender Basque, my new wig, and far too much makeup. I had never gone this far with the dressing but felt wonderfully slutty as I walked to his car, fortunately it was late and fairly dark so nobody seemed to notice. Before he drove off he slid his hand up my tight skirt to check everything was as instructed before kissing me firmly on the mouth, he grinned and said it was going to be a night to remember before driving off. We arrived in the forest car park after about twenty minutes where I was surprised to see several pairs of headlights. After stopping the car he walked round and opened the door and reached for my hand, as I got out of the car I was nervous about the other cars being there but followed anyway. He led me towards one of the picnic tables and told me to lie face down, before I could say anything I was pushed forwards and a couple of other guys who I had not noticed were pulling my arms towards the end of the table before binding my wrists and attaching them to the end of the table, I then felt my legs being edged apart as I struggled to keep my balance in my heels, my ankles were then attached to the table legs, I said nothing as I awaited the inevitable and I did not care what they were going to do with me, one of the cars was moved so the headlights lit the scene. I did not know how many guys he had invited or how many were there just to watch. I felt several pairs of hands running over my legs and body and up under my skirt and into my panties probing my tight hole. Then it all started, a couple of guys moved to where my head was and the first cock was shoved in my mouth, at the same time I felt my skirt being lifted and my panties being ripped. The ky felt cold as it was rubbed around and into my arse, at least they were using it though! Fortunately the first cock was not too big as it went straight in to its full depth and began pumping franticly in and out of my arse, he was obviously in a hurry, after that it became a bit of a blur, I counted ten cocks in my arse as the night progressed, just when it appeared that they had finished with me another three cars pulled in the car park and it all started again. Eventually it did end and I was left for a while still tied to the table as I heard the cars leave, finally the guy who had taken me there came over and fingered my exposed and swollen arse and laughed as he told I was a real fuck slut now and I belonged to him. I knew it was true and wondered what he would have in store for me next!