妹の友達が僕のエロ本を見てオナニーしているのを目撃！ 僕の家に妹と友達が遊びに来て泊まることに。エロ本を見つけてムラムラしちゃった友達はつい我慢できず、寝ている僕達を気にしつつ一人で慰めていたけど、やっぱりそれだけじゃ物足りず僕のち○ぽまで欲しがった。
I witnessed my sister's friend seeing my erotic book and masturbating! My sister and friends came to my house and stayed there. A friend who found an erotic book and was horny couldn't stand it, and he was comforting by himself while worrying about us sleeping, but after all it was unsatisfactory and I even wanted my life.
