Blonde beauty Katee V and her sister Gia Ohmy, under the guise of therapy, find themselves in a perverted game of tricked desires. Dr. Peter Fitzwell, their psychologist, encourages them to share a double-ended dildo, manipulating their bodies and minds into a heated, familial frenzy. The sisters, their rivalry forgotten, explore each other's curves, their moans echoing as they're brought closer together by the shared phallus. The doctor's presence, initially clinical, becomes hungrily engaged, his voice encouraging their taboo pleasures as they ride the thin line between wrong and right, climaxing in a mess of shared juices and spent fluids.