Voting Card Game Turned Into A Gangbang

We had a friends holiday party and we were playing a card game called "the voting game." You try to get the most people to associate you to a card and then you get a point. One of the cards was "who would be willing to have sex with the most people in the room." We jokingly debated that this had to go to a guy because most of us put our dicks into anything. One of the girls was pleading her case and said she would have sex with all of us right there to prove it. We assumed she was bluffing and kept trying to call her on it and she stood up, got completely naked and said "we are doing this! Whose first?" We were in shock but after that all 4 of us single guys took turns fucking her. When we were done she got up to take a shower but walked past the table, grabbed the card that started all of it and said "I win."