「ヤバい！声出したら お姉ちゃんにバレちゃうよ」お姉ちゃんが彼氏さんの勃起チ○ポをフェラしてる！こんな状況でオナニーしてるのがバレたらとんでもない事に…？
"It's dangerous! If you say it loud, your sister will find out." My sister is giving a blowjob to her boyfriend's erect penis! It would be terrible if I found out that you were masturbating in such a situation...?
