A NEET man who just lazes around at home is always asked by his sister-in-law to help him with the housework. So, when he lifts his heavy hips and turns the washing machine, his sister-in-law's clothes, which he washes at the same time, shrink unbelievably! Her sister-in-law notices this and approaches her with her big breasts sticking out of her clothes, but as soon as she sees his erect dick between her big breasts, she suddenly becomes a bitch and deepens their friendship with her.