Koji, who had been neglecting his married life due to being too engrossed in work, finally got into a big fight with his wife. To mend their relationship, he initiated make-up sex with his wife who was sulking. As he caressed her firm and fleshy buttocks, he slid in without any discussion. Unable to hold back against her unusually tight vagina, he ejaculated inside her. 'That felt amazing. Come on, let's take a shower... Wait, Mother-in-law!?' Koji had accidentally had sex with the wrong person. He and his mother-in-law began to develop a forbidden relationship...
