I can't believe I got aroused because of my sister's blowjob!! She was always the serious one who excelled in academics since we were young, but in reality, she's just a typical high school girl who loves having sex!! Whenever the conversation turns to sex, she gets excited and wants to make love right away!! Of course, I don't want to have sex with her, so I told her firmly: "Sister, you must not make me aroused," but ended up having a wild time. [English subtitles] [HUNTA-216]