"You seem to know about sex, but you're a virgin when it comes to getting fucked..." A slutty older sister treats me like a virgin, even though I'm excited about learning about sex. I rebel against being treated like a virgin, which is such a shock, but I get absorbed in the pleasure of being fucked as taught by my teacher. Slow pistons and explosive pistons in cowgirl position, and edging attacks! All of these slutty attacks are things I've never received before, and I'm gradually developing into a perverted M-type who can't get off unless I'm being fucked...