Buxom Mrs. Harris gets high on laughing gas and the dental hygienist takes advantage. As a result, Mrs. Harris deep-throats the dentist. Outside, Sandy the receptionist asks her friend to take over for a moment. Until the receptionist finally returns, her friend gets involved with a man with a toothache after both of them peep inside. The dentist then invites his receptionist and hygienist to his private pool. The hygienist seduces the receptionist in the shower and they move on to a bed massage. The dentist soon joins them.