Satoshi has always admired Rin, the voluptuous married woman next door, and invents excuses to visit her whenever he can. He arrives with a souvenir one day but gets no answer from the intercom, even though the front door is unlocked and standing open. Fearing a burglar, he rushes inside—only to find Rin exposing her massive breasts and melting into an obscenely aroused display. What follows is a rush of orgasms, wildly bouncing tits, and creampie sex that destroys her restraint.