My brother is watching anime and I come over and remind him how we used to watch Demon Slayer together a lot and how I miss it, and he then tells me to sit down and watch it with him, and I say yes because I just finished tutoring and I don't want to work anymore today, so I watch it with him, but it's really hot and so I take off my shirt, and he looks at me like it's weird, but it's okay because he's my stepbrother and he doesn't have to worry about it, and then I tell him that I'm his older sister and ask if he's been behaving himself and he says no, I'm shocked, and he starts running his hands over my breasts and wants something from me and I ask him to keep it a secret and not tell his girlfriend, and he agrees with me. So I show off for him while he runs his hands over me. So I start sucking his dick and I sit on his dick while he watches anime, and then we change positions and he fucks me leaning on the couch, and very hard, and I ask for it harder and harder, he makes me so horny, and then he sits on the couch and I get on top of him and I grind a lot, and then my tits bounce a lot while I'm on top of him and he starts fucking me on top of him and cumming inside me.