My younger cousin Mei started using a vibrator on me to make me cum, and somehow her older sister Kaho found out. After that, Kaho also insisted on giving me the same electric massage treatment. Both sisters are tall with beautiful legs, and their striking physiques—combined with their knowledge of how to use the vibrator—only deepened my fascination. Kaho even claimed, "You know, I was the one who taught Mei how to use the vibrator," and then proceeded to relentlessly assault me with it. I ended up witnessing the rare sight of a girl pulling out a vibrator to use on a guy, and was overwhelmed as she straddled me, stimulating me with both her bare feet and the vibrator in a merciless double assault.