Close friends Mary and Yuuna are chatting over tea when the conversation turns to their sex lives. Yuuna admits she has been enjoying satisfying sex with a younger adult man she met through an app. Mary considers dating apps shady, but agrees to try one just for fun. The adult student she meets is obedient, awakening her pleasure in control. Soon the younger man is drowning in the mature allure and aggressive attention of both married women as they train their favorite together.