Due to popular demand, here is the fourth installment! A couple comes to a bridal salon with their girlfriend, who said she wants to look beautiful at her wedding! This time, the treatment begins after the couple drinks tea with an aphrodisiac in it! Just as the aphrodisiac starts to take effect, the male and female estheticians switch places and the salon moves to a risky one... The boyfriend can see his girlfriend being toyed with by the male esthetician and feeling her pleasure through a magic mirror! But the boyfriend also succumbs to the temptation and technique of the female esthetician! The couple, obsessed with pleasure, are secretly cuckolded by the esthetician at the same time!