My sister and I had a foursome with two friends

I'm a little drunk right now so I will describe it shortly and clearly:<br><br>I've fantasized about my sister since I was 15. Last year I confessed and she became interested in it too. <br><br>We have been n a sexual relationship since than. We are both 19 now. <br><br>We have two friends, a girl and a boy, who also are on a sexual relationship and they also are jealous about the fact that I can be with my sister and they can't do the same thing.<br><br>So, we made a foursome in a "incestuous" way. My sister blew me while I was blowing the other girl n until we both came and after that, we rolled the same positions and we had sex while the other girl was blowing the boy.<br><br>After a while, we changed positions and my sister blew the boy while I was n the other girl until we both came and after that, my sister had sex with the boy while I was on the other girl.<br><br>It was sooo good and I want to do it again some day.