大富豪の社長に嫁いだ元・No1ホステスの美しき若妻・らん。社長の前では清楚で従順、義息子には優しいお姉さんとして振る舞っていた。しかし…二人きりになったその瞬間、らんは豹変する。「お前のガキチンポしゃぶらせてもらうね！」社長の目を盗み、義息子の童貞マラを好き放題に喰い散らかすド変態長身痴女の本性を剥き出しにする！抵抗の出来ない無垢な義息子を自分だけのドMペットへと調教し尽くす！
Ran, a beautiful young wife and former No. 1 hostess, married to a wealthy CEO. In front of the CEO, she acts pure and obedient, and behaves like a kind older sister to her stepson. However…the moment they are alone, Ran transforms. "I'm going to suck your little brat's cock!" Stealing glances from the CEO, she reveals her true nature as a tall, perverted slut who devours her stepson's virgin cock as she pleases! She completely trains her innocent stepson, who is unable to resist, into her own masochistic pet!

– JavGG.net