[Ultra-high-definition 4K video] My childhood friend Karin is a popular fair-skinned beauty 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 or treat a girl? I'm worried, so why don't I be your sex practice partner?" I was completely provoked by her usual teasing words and kissed her, and she said, "That's not right... This is an adult kiss," and we had a serious French kiss. Karin was sexier than usual, and my heart was shaken. Before I knew it, I was crazy about Karin. My mind was blank and I was shaking my hips and climaxing inside her... This product is an excerpt from [My virginity was taken by my childhood friend... My teasing childhood friend Kitaoka Karin became my sex practice partner for me, a virgin who had just gotten her first girlfriend].