I Seduce My Shy Stepbrother and He Ends up Giving Me the Best Fuck of My Life and He Cums in My Ass

My stepsister has a lot of friends and they are all very pretty and flirtatious. I always ask her to introduce me to them because I'm attracted to them and I feel like I could fall in love with them. She is jealous and tells me that she doesn't introduce me to any of them, that's why I have her and we end up fucking great.