TAMM-014 Masochistic sister-in-law's temptation - Beautiful wife who wants to be trained by her brother-in-law Yuna Takase

Due to work commitments, Kyosuke ends up staying with his brother and his wife for two nights. Kyosuke has trouble focusing on his sister-in-law's beauty and lewd appearance. On the first day, Kyosuke wakes up in the middle of the night and spies on his brother and his wife's perverted sex. On the second day, my sister-in-law tells me that her husband won't be home tonight, and asks me to train her.