It was Halloween and my group of friends were went to this girls house party. The rules were it was fancy dress and we all had to be masked up and when we got there they passed round alcohol and where playing spin the bottle and truth or dare. Various groups showed up throughout the night and a lot girls so we got very excited with every game we played… We started playing spin the bottle and me and this girl got paired together. The dare was that we had to go into this closet and she had to suck my dick and I was super excited. She didn’t object so we both started heading into the closet. I was getting super hard, and as soon as we got into the cupboard, I started unbuckling my pants. Without saying a word she got her knees, pushed her mask up a bit, opened her mouth and wrapped her lips around my cock. I was having the best time of my life as she was sucking, some random chick from the party just sucking my cock in the closet whilst everybody outside waited. She was really good too, and after giving me head for a few minutes, I started breathing heavily. I exploded in her mouth and all over her mask and she jumper at first but took it. I buckled my pants back up and she just got back up and headed out.

A number of hours past and me and my buds went out drinking afterwards so I returned home late. When I got back noticed the mask the girl that I went into the closet with on my sideboard with stains on my heart started to rush and I frantically went round the house making sure my sister had friends staying with her. after searching she didn’t so I went to bed panicked. I asked her in the morning and she admitted to going to the party and playing the same game. She didn’t say anything else, but I knew with her costume and mask that she had been the one.

I knew then that I’ve been to a party and my own sister had given me a blowjob until I came in her mouth. Part of me wishes I had a video, but I don’t know if I should tell her or not. I can’t get over the fact that she sucked me off! What should I do?