Konatsu is my childhood friend, popular and alluring at school. She always teases me about being a virgin. But I finally got a girlfriend! When I told her, she made a surprising suggestion: "Can you kiss me? I'll be hated if I'm a virgin... Why don't I be your sex practice partner?" Though I was hesitant, I decided to obey Konatsu, determined not to be disliked by my "girlfriend." She gently taught me about my first kiss and the workings of a woman's body, and I was overwhelmed by the soft, warm feel of a woman's body, which was beyond my imagination. Seeing Konatsu acting more demure than usual, saying, "I'm getting too carried away... but be gentle..." made my heart flutter! Before I knew it, I was shaking my hips in ecstasy, climaxing inside her... My first kiss and blowjob led to an explosive orgasm, my first virginity in her uniform, a handjob and oral ejaculation, mutual footjob and masturbation in her gym clothes, and continuous creampie sex... a total of eight ejaculations. This is the story of my youthful, lovey-dovey sex with my precious Konatsu, the person closest to me than a girlfriend, and my virginity graduation.