I visited my relatives' house for the first time in five years to tutor my cousin who is about to take an entrance exam. While I was tutoring the grown-up second daughter, Natsume, she seduced me with her strange sex appeal. I told her that it was not right to have sex with a relative, but Natsume was proactive and pushed me, and we ended up having sex, and the sisters saw us! I thought they would get angry, but the magic of sex continues! I had a dream "sister threesome" with beautiful cousins one after another!