Harold (Stirling Cooper) and Martha Green (Alexis Fawx) reveal to her step-daughter Cassie (Adria Rae) for her 18th birthday, that she was swapped at birth as part of an arrangement with a friends couple, so that each couple could indulge their fantasy and fuck their 'step-daughter' when she came of age. Cassie's step-sister Heidi (Ella Knox) reveals also that she has been through the same thing.