HUNTB-125 "Should I be your girlfriend until you find one?" The new little sister who suddenly appeared due to my parents' remarriage is incredibly cute and kind, always treating me like a real brother.

When I was feeling down after being dumped by a girl, my younger sister said, 'How about I be your girlfriend until you get one?' Then she asked me, 'What do you want to do?' Getting carried away, I kept escalating my requests! Before I knew it, I got an erection and begged her, 'Since we're lovers, I want to have sex.' But since we're siblings, that's out of the question. She just rubbed against me to help me hold back. She straddled me and did dry humping! Since she was already wet, I slid right in and had raw sex!