ROE-564 I tried to turn the aunt I’d always admired into my personal masturbation toy, only to find out *I* was the one being used as a human vibrator—Cuckold couple scenario with creampie by a stranger (Reika Nagasaki)

Yuto has come to stay with his aunt and her husband while preparing for university entrance exams. He finds himself captivated by the mature beauty of his aunt, Reika, whom he hasn't seen in a long time. One day, hearing the voice of an unfamiliar man, he secretly peeks into the bedroom and sees Reika straddling the stranger! Unable to tear his eyes away from the sight of his admired aunt in such a lewd act, Yuto cannot help but make a move on her once the man has left. Hooked on the thrill and excitement of infidelity, Reika—despite her initial bewilderment—experiences repeated orgasms during their illicit encounters and soon begins to crave the intimacy herself.