Mika Sumire is happily married until the man moving into the apartment next door turns out to be her ex-boyfriend. When he visits while her husband is away, she cannot bring herself to send him home, and their conversation gradually turns sexual. He loses control and fondles her beautiful breasts; instead of resisting, Mika's body begins craving him. His pussy-licking makes her tremble all over, and she arches back as his cock slips inside. Sex with her ex feels far better than it does with her husband, and she surrenders to the intense pleasure.