When I went back to my hometown after a long time, my childhood friend Karin, who used to be plain, had become a gal. She used to be so quiet, but now she talks in a cheeky way and asks me, "Do you want to try my blowjob?" I thought, "You've got to be kidding me!" But then she started sucking my dick, and it felt so good that I ejaculated. From that day on, Karin started to play with me, and whenever she had free time, she started calling me.