A discussion on enlarging Edina's bedroom leads to a rare visit inside Serge's bedroom. While looking around, Saffron discovers a porn magazine and tries to throw it away, but Edina and Patsy prevent her. Patsy then begins reminiscing about their youthful orgies, but Eddy can't remember them, even though Patsy assures her she was there. The talk then turns to Edina's lack of sexual activity, and plans are made to hire male prostitutes via Edina's hairdresser Christopher for an old-fashioned orgy, which is scheduled for the same night as Saffron's "Genetics and Ethics" presentation at her university. The orgy doesn't start off well; Edina can't seem to get in the mood, and the prostitutes are none too enthusiastic either. When Patsy tries to liven things up by popping in a porn film she has brought, it turns out to be Saffron's genetics video. Fearing the worst, Edina and Patsy, accompanied by Gran, Christopher, and his drag-queen boyfriend, rush off to the university, but it is too late: to Saffron's mortification the porn video – a home movie of one of the orgies Patsy remembers but Edina has forgotten – is already playing. As everyone watches, the camera pans over various intertwined couples to reveal a young Edina asleep in a corner next to a bag of crisps. Also appearing: James Dreyfus (Christopher), Idris Elba (Hilton), Ian Gelder (David), Andrew Loudon (Geoff), Ben Soames (Boy), Caroline Waldron (Caroline), Lee Walters (Boy)