Very sexy
Your girlfriend decided to invite all her friends over for a "Twisted Bedsheet Party". She only invited girls, they were only allowed to wear one twisted bedsheet for clothing, and each girl that arrived got to set one 'twisted' rule that applied to everyone at the party. As girls showed up, they had to complete all the previous rules before making their own. You were unlocked for the party, but not allowed to touch yourself and not allowed to leave everyone's sight.
You were actually a little surprised at the turnout. Your house was completely filled with sexy, half-naked girls getting drunk. Things took a small turn for the worse (for you) when an entire sorority showed up.
Some of the less dangerous rules that had been put in place were things like "every girl had to show you their tits" or "each girl has to make out with at least two other girls, in front of you". One girl even said "every girl had to rub their tits in your face for a full minute".
Then things got a little spicy. One girl made the rule that "every girl has to spend a total of ten minutes with your dick in their mouth, but you're not allowed to cum". That one took a while, and got a little dicey on more than one occasion. In the end, you learned that 3 months of sexual frustration was NOTHING compared to getting a blowjob from a couple dozen women in one night with no orgasms.
Another of the more extreme rules was that every girl had to kick you in the nuts 5 times, no holding back. They had to hold you down for that one. One girl made the rule that you were not allowed to cum for a week after the party, for each girl that showed up. Some of the girls debated that one, since it wasn't going to happen at the party and the girls wanted more fun, sexy, cockteasing tasks to perform, but it was finally allowed simply because it was hilarious and the girls knew that you would suffer.
Then this devilish hellcat shows up. You could tell right away that she was big trouble and down for anything. She looked at the list of rules, performed every single one of them, then added her rule to the end of the list. Her rule caused an uproar (but only a little debate, because it was unanimously agreed that it was the best rule yet!): Every single girl had to repeat every single rule on the list.....and that included the chastity time.....














