The most erotic... Haruki Sato's raging kisses and sex! A father-in-law who has had a physical relationship with his son's wife... He knows it's wrong, but he can't stop! It's irresistible! No matter how many times he does it, he never gets bored! He'll want to do it again soon! Their saliva-covered tongues devour each other, entwine, and mix their fiery hot genitals...