Cheating with Husband's Friend: Monthly Conception!

After three blissful years of marriage to Masashi Kanda-style partner Uno has finally reached a milestone—planning for a family! On her peak fertile day—the prime window for pregnancy—Uno prepares special tonics to ensure her husband is ready to impregnate her. However bliss is short-lived when Masashi’s junior colleague arrives. After one night of drunken passion that leaves them breathless but unfulfilled in their reproductive goals, The next visit from Oki escalates the drama. Claiming to have forgotten something at the hotel where they are staying temporarily allows him to corner Uno. He forcefully pins her down and delivers a massive cumshot deep inside her during this critical fertility window! That evening, desperate to erase his evidence and secure conception with her husband’s blessing (or perhaps just out of panic), she forces Masashi into multiple rounds of intense internal ejaculation. One month passes without news, leading Uno to feel relief—until Oki reappears, threatening to expose the affair to Masashi. To keep the peace, she submits, allowing Oki to impregnate her again on schedule. This cycle becomes routine: every fertile month brings Oki back for fertilization! When Masashi tries to take charge this time, Uno lies about attending a friend's birthday party, securing another night with Oki. A month later, she’s pregnant—a joyous announcement for Masashi—but deep down, Uno knows the baby might not be his after a month without intimacy...