My sister and I have had s** since she was 12 and I was 14. 2 years now and we enjoy it a lot. I almost always have a girlfriend to take away suspicion to how close we are and get laid. Occasionally we can talk them into having s** with us, or having s** with a few of her friends. She tried s** with a couple guys from her school but they were big disappointments. Now I’ve really fallen for her friend Diana and my sister is getting a little jealous of our relationship and our constant s** life, even when she’s with us. How do I fix this?
