GS-231 While My Parents Are Out, Erections Are Unexpectedly Impossible In My Underwear Appearance That I Should Have Become Accustomed To My Sister, Who Was Supposed To Be Unaware Of Anything Until Now, But I Was Not Worried At All!That Is My Sister's Response "What's Up?"You're A Brother's Virgin, Are Not You? "
1GS231 両親が留守中、今まで二人きりでも全く気にならなかった見慣れたはずな妹の、いつのまにか大人になった下着姿にソソられ思わず勃起！それが妹にバレて「何勃ってるの？お兄ちゃん童貞なんでしょ」