An engaged couple visits a bridal spa, where a male and female therapist serve them drugged tea and begin same-sex massages. Once the couple is aroused and hypersensitive, the therapists suddenly swap partners. The shy girlfriend resists weakly but loses to the pleasure and lets the man take control. Her boyfriend is forced to watch through a magic mirror, yet the busty female therapist’s expert touch overwhelms him too. Both partners end up being taken at the same time.