Stepsister Emi and her husband's affair with their niece

Emi, a sultry stepsister, harbors a deep longing for her husband's attention. Alas, he's too preoccupied with his mistress, a voluptuous vixen with a tantalizing derriere. One fateful evening, as Emi indulges in some self-pleasure, her husband and his lover descend the stairs, their eager anticipation palpable. The husband, unable to resist Emi's allure, engages in a heated rendezvous with her, oblivious to his mistress' presence. As the passionate encounter unfolds, the mistress joins in, reveling in the intoxicating pleasure of Emi's ample assets. The husband, now captivated by his mistress, abandons Emi to the seductive advances of his lover. The cuckoldry escalates, the threesome becoming a wild, uninhibited display of carnal desire. The husband, now fully satiated, withdraws his manhood, leaving a warm testament of his visit. Emi, the cuckolded wife, can only bear witness to the erotic spectacle, her yearning for her husband only growing more insatiable.