Hey, big brother... my pee hole feels so hot...! The diligent, top-student class president sister lies asleep on the living room sofa. I touch her unresponsive body, but her eyes remain closed. I slip off her panties and carefully examine her pussy. Getting bolder, I tease her with my fingers, then run my tongue over her, stimulating her. Eventually, my sister wakes up, and with a confused expression, starts licking my crotch...!