Married woman Eriko (26) is four years into her marriage when she receives a request from the organizer of a swinging club to be cuckolded. Out of loyalty to her husband, she agrees—though torn emotionally even as her body responds. She tries to turn away her face and desperately suppresses her moans, yet her pussy drips with arousal, soaking wet as she takes the man’s cock and finally cries out. Thrust into fiercely, she groans loudly; once mounted in cowgirl position, she grinds her hips, displaying a helpless, conflicted pleasure. Afterward, she brings herself to climax with a toy and live-reports to her husband over the phone, repeatedly telling him she came. When she takes the man’s cock again, her reaction is different—she pants like an animal, her body trembling as she reaches orgasm.