Oh, no," she said,"you can't do that! Hey, if you do it that hard, I'm gonna put it in!" I can't have sex with you because we're siblings... you promised to only fuck me bareback, right?" My sister came to stay with me from her parents' house where she lives alone, and when she was barebacking me in my shirt, she got all wet and slipped it in and out of me! My sister suddenly came to Tokyo and stayed with me for a few days.... (上京してきた姉が一人暮らしのボクの部屋にしばらく泊まることに。著替え代わりにワイシャツを貸したら彼シャツ狀態！その格好でくつろぐから無防備過ぎるエロい姿を何日も見ていたら勃起しまくり！姉にもバレて気まずい…だけど怒られるどころか「絶対挿れないならいいよ」と素股を提案されたけど徐々に爆濡れ狀態！「姉弟だからエッチはできないよ…素股だけの約束だよ」と言うもベチョベチョマ○コでズッポシ生挿入＆中出し！)