A bold episode featuring Satsuki, a 46-year-old perverted milf, who pursues pleasure using another man's penis right in front of her husband, fully embodying an extremely lewd lifestyle while recording her own orgasms. Constantly drenched in semen, she never stops searching for new thrills. Part 4 includes the continuation from the previous release, "Perversion Swap Episode 2: Couple A's Outdoor Street & City Hotel Encounter," promising even more erotic developments.