健全な付き合いを続けてきた『みこ』と『よしお』はデートの帰りにゴムを渡してキスする写真を斎藤に撮られる。斎藤はみこを脅してゴムありセックスまで行き着く。みこは完全に堕ちて生ハメを自ら懇願するようになってしまうが、それでもよしおと別れようとしない。口ではよしおのことが今でも好きと言い続けるが、実際は背徳感ある浮気セックスの気持ち良さに浸りたいだけ。斎藤のこともただの気持ち良くしてくれるチ●ポとしてしか認識してない。
Miko and Yoshio, who had been in a healthy relationship, are photographed by Saito kissing after Miko hands him a condom on the way home from a date. Saito blackmails Miko and forces her into having sex with a condom. Miko is completely corrupted and starts begging for unprotected sex, but she still doesn't want to break up with Yoshio. She keeps saying that she still loves Yoshio, but in reality, she just wants to revel in the pleasure of cheating sex with a sense of transgression. She sees Saito as nothing more than a cock that makes her feel good.

– JavGG.net