【ヤリマン姉もビクビク痙攣18射精！】地元にいる同世代のオトコはほとんどヌイてきた超絶ヤリマン・結衣。両親の再婚で一緒に住むことになった新弟のデカチンが目に付き…つまみ食いしようと爆乳ボディで挑発して可愛がってあげるつもりが、気づけばハメ倒されて立場逆転！生粋のヤリマンもガクガク崩壊するほどの激ピス地獄、追撃、中出し！一度射精しても終わらず追いかけ回されまた挿入！凄テクフェラで抜いてあげても、パイズリでイカせてもムクムク復活してくる絶倫チ○ポにアへイキまでさせられて…まさかこんな性欲モンスターだったなんて思ってもいませんでした…。

[Even the slutty older sister is left trembling and convulsing as she ejaculates 18 times!] Yui, an extreme slut who has fucked almost every guy her age in her hometown, notices the huge cock of her new stepbrother who moves in with them after their parents remarry… She tries to tease him with her big boobs and give him some playful attention, but before she knows it, she's fucked hard and the tables are turned! Even a true slut is left trembling and collapsing from the intense fucking hell, followed by more fucking and cumming inside! Even after he ejaculates once, it doesn't end, and he chases after her and inserts again! Even when she gives him a great blowjob and makes him cum with a titjob, his insatiable cock keeps getting hard again and again, making her orgasm… She never imagined he was such a sex monster…