I'm not popular, but I finally got my first girlfriend! The problem is, as a virgin, I have no idea how to handle being with a girl. In times like this, I turn to my childhood friend Nao, who's been by my side since we were kids. To my surprise, she suggests, "Why don't you just lose your virginity to me first?" Not wanting my girlfriend to find out I'm a virgin, and having no clue what I'm doing, I decide to practice sex with Nao! She teaches me everything from blowjobs and eating pussy to creampies. But as we're fucking, I finally realize... I...