So last weekend I was hanging out in my room while my parents threw a party downstairs, i was playing video games with my friends online (GTA). After awhile of playing I heard a knock at my door and then my crush came in. For context my parents and her parents are very close so we grew up together. She comes in and asks if she could play I said I was actually finishing up, my friends knowing it was my crush told me to leave and try to make a move on her I pretended to say bye to my friends as they all gave me a good luck speech . I asked her to sit down and she did… but on my lap!!! Not being prepared for it and being a young man I instinctively got an erection she saw my face and asked what was wrong when not even a second later she grinned. Surprisingly she asked me if that’s what she thought it was, me taking my chance said yes and she got visibly excited . After growing up with her my whole life and being madly in love with her I leaped at the opportunity and kissed her. She then did the same and before you know it we are butt ass naked having full on sex, she then started moaning louder and louder and being in the moment forget that our family’s where downstairs. As I was about to finish I heard my mother screaming at me, me and her very shocked tried to cover ourselves when we realized all of the people attending the party where starring at us in disbelief. My mom shouted at me to explain to myself what I was doing with my crush embarrassed I couldn’t respond properly before she said one last thing to me before slamming the door “from now on you are no longer able to see your cousin” and i was never invited back to another family gathering after that day.