My parents remarried and I became a shut-in, but now I have a cute stepsister! My stepsister has a nice personality and is kind, so she quickly warmed to me and we get along like real siblings. But she's always on the Kokoro, so I can see her breasts and panties all the time! I couldn't help but get horny when I saw her defenseless ass... so I took off my stepsister's pants and inserted myself right away! Of course she resisted violently, so I kept cumming inside her from behind with my ankle locked piston... and she suddenly turned into a super sensitive slut who had continuous spasms and explosive orgasms! She asked me to cum inside her and wanted my dick!