I bet on my 20-year-old girlfriend

I'm going to tell you what happened to us yesterday. We agreed that a couple of friends were coming over to eat at my place. My friend's boyfriend from years ago arrived, everything was perfect, we ate and then we smoked a joint. Then his girlfriend, who works at a distributor, had to go urgently because they needed her to open the door since they had left a hottie outside. She told us she would stay with her boyfriend, so she left and we were left alone with my friend. I told him let's play some games. We started playing and drinking beers. The matches got really intense, we were tied and it was almost midnight, so I said let's decide this game. He said okay but only if there's something at stake. Okay, if I win you show me a picture of your girlfriend naked. He started laughing. Are you not going to take the challenge? I said. And he said okay, if I win my girlfriend will make you cum and if I win she'll make me cum too. She was really surprised and looked at me with a smile. I accepted the challenge. We started playing and the game was 0-0 until the 85th minute when they got a penalty kick. I felt a heat in my body and an excitement that I couldn't control. My girlfriend turned bright red, showing she was also excited. She kicked it and scored. I didn't know what to do and the game ended. Well, time to fulfill my words. I'm going to bed when they're done, let them know. I went to sleep really excited and a while later my girlfriend came up. She said your friend is already gone but he finished inside me. (HERE IS A PICTURE OF HOW MY FRIEND LEFT ME) We had sex until we finished and then she made me cum again. Hope you enjoyed it. Goodbye