When I returned to my hometown after a long time, my childhood friend Karin had transformed into a total hottie. She used to be so shy, but now she's all sassy and even offered to give me a blowjob! I thought she was joking, but then she actually started sucking my cock, and it felt so good that I couldn't help but cum inside her. From that day on, Karin started teasing me, and she'd call me over whenever she was bored...