My childhood friend, Karin, is a fair-skinned beauty who is popular at school. She always teases me because I'm a virgin. But I finally got a girlfriend! When I told her, she made a surprising suggestion: "Do you know how to kiss and treat girls? I'm worried, so why don't I let you practice sex with me?" I was completely provoked by her usual teasing words and kissed her, and she said, "That's not right... This is how adults kiss." She gave me a serious French kiss. Karin was sexier than usual, and I was shaken by her. Before I knew it, I was crazy about her. My mind was blank and I was shaking my hips and climaxing inside her... I ejaculated unexpectedly during my first kiss and blowjob. I lost my virginity in her uniform. She gave me a body wash, a titty fuck, licked my nipples, and gave me a handjob. I ejaculated a total of seven times to Karin, who has a beautiful face and body. The person who was truly important to me was closer to me than my girlfriend... A youthful, lovey-dovey story of losing my virginity with the kind and lovely Karin.