Karin, my childhood friend, is a popular, fair-skinned, and elegant beauty at school. Always teasing and playing with me, I eventually found myself falling in love with her. One day, when I confessed my feelings, she replied, "Do you even know how to kiss or treat a girl properly? I'm worried, so maybe I should become your sex practice partner?" With those playful words, she seduced me into kissing. As usual, I fell right into her trap, sharing my first kiss with her. But then she said, "That's no good... this is how adults kiss," and passionately gave me a deep tongue kiss. Her sexier, more alluring self shook me to the core. Captivated by her charm, I gradually began to truly care for her. My mind blank with pleasure, I thrust my hips and experienced my first ejaculation inside Karin. In her school uniform, she took my cock into her mouth, performed handjob with her breasts, let me suck her nipples, jerked me off with her hands, then gave me footjobs and assjobs in her swimsuit before I finally came. This first sexual experience with Karin—beautiful in both body and face, gentle and beloved—became a heart-pounding, intimate love story of youth. The one who had always been closest to her was me.