I had always had someone I liked as a virgin. I had always wanted to kiss them so badly. During this time, my sister, who was arguing with her husband, came home. "Teach me how to kiss," she said unexpectedly, and despite the surprise, she agreed to practice kissing with her brother, unable to resist his insistence... As the brother's desire grew, he couldn't suppress his erection, and he ended up having his first sexual experience with his sister...
