A woman married to another man, whose personality is weak against pressure, gave birth to an unlimited erection monster! Luna, a married woman, couldn't refuse her underage brother-in-law, who had become obsessed with his virginity despite his age, when he asked her to help him lose it. The sex was so good that... her brother-in-law's mind was filled with nothing but sex! Luna is attacked by the non-stop rampaging monster of lust. She's cumming non-stop and has reached her limit, yet she's assaulted over and over again! Even without a condom, he pistons into her with bareback in-and-out thrusts! She's completely defeated by his astonishing stamina!
