A virgin ○ school student who masturbates if he has time. Today, when I put my hand on my crotch with an erotic book in one hand, my gal sister entered the room without knocking! My sister who loves sex is curious about the obvious virginity smell. She asked, "Shall I teach you?" and started attacking...! The overflowing libido goes beyond the fact that she's her siblings... this is what youth is about.
