Yoji returned to his hometown and found that his brother and sister-in-law seemed to be having some issues. Apparently, they were arguing over the direction of their infertility treatment. Although Yoji usually kept his distance from them, he accidentally caught a glimpse of his brother and sister-in-law in the act. Normally quiet, his sister-in-law's lewd appearance was captivating, and it was noticed by Ai. Desperate to get pregnant, Ai tempted Yoji with the idea of using her brother-in-law's sperm. Sweaty and repeatedly urging him to ejaculate, Ai's obscene behavior overwhelmed Yoji, who ultimately released a large amount of semen deep into her vagina...
