A salaryman (31) with a secret fantasy—wanting to watch his proud girlfriend have sex with another man—steps into the spotlight. His girlfriend is his coworker and peer, the stunningly beautiful Aira-san (31). She has quit her job to focus on getting pregnant, practicing yoga and building her stamina. With marriage planned for next year, this is a crucial time for her. Deeply caring for her, the man stumbles upon an NTR manga online, sparking a hidden desire for cuckolding. The content is shockingly intense, leaving even the crew stunned. It's almost pitiful to imagine such a sincere, kind woman involved in such a scenario. Later, at his home, filming begins with casual conversation. She meets the male actor and shares a kiss in front of her boyfriend. Initially hesitant, they soon deepen the kiss, tongues intertwining. As clothes come off, her 165cm slender, gorgeous body is revealed. Breast fondling, nipple play, nipple sucking, clitoral stimulation, spreading her pussy, fingering (soaked wet), vibrator use, cunnilingus, and vibrator-induced orgasm follow. She claims she doesn’t want to be seen giving a blowjob, but after her fiancé leaves the room, something clicks—she becomes eager, passionately sucking the actor’s cock. She gives a blowjob while the vibrator buzzes against her clit. Penetration begins in missionary position, and with her fiancé gone, she grows increasingly aroused. In doggy style, he thrusts deep inside, and she pleads, “More… please.” Her ass in doggy and kneeling doggy positions is insanely hot. Overcome by her moans, her fiancé returns to the room. When their eyes meet, she pleads, “Don’t look,” yet continues to feel pleasure. He watches intently, stroking his cock as she rides the actor, then reverse cowgirl, standing doggy (with creampie splatter), missionary again, fingering (squirting), and back to missionary. Then, at the boyfriend’s whispered plea—“Please…”—the actor cums deep inside her womb in a massive creampie. The boyfriend cums on her legs. Afterwards, she unexpectedly asks him to sign as a witness on their marriage registration form, leaving him shocked by the whirlwind of events. The story is wild, intensely erotic, and utterly captivating.