"Let's do something cool so that my dad doesn't get caught!" Maria, a too lascivious mother, gradually closes the gap from a light skinship and sneaks into the ears of her son, Takuya, with a whispering voice. "It's a bad erection even though it's such a situation, isn't it?" Takuya endures the dangerous temptation of sighing with a mischievous smile while shaking his whole body. "If you don't put up with it, you'll get semen quickly." Maria becomes more and more bold even though her father is at a close distance.