I (20F) had sex with every boyfriend my sister (19F) ever had and I simply love it.
My sister and I never were really that close, we always behaved more like rivals to each other. Even when we were younger we always compared who got the cooler friends, the best gifts and who is better within their sport activities or grades. When I thinking about it, our parents never actually tried to stop this and so it goes on until now.
But with one activity my sister cant hold my pace … fucking each other boyfriends. That’s because I’m the hotter sister, I have a way sexier body, in part thanks to my big tits, that makes her really jealous, in that aspect she will never beat me. So every time my sister is bringing up a new boyfriend, I propose to myself to fuck him and as far as I know, I missed none.