Three weeks after Karl's short weekend visit to his friend Trevor's home and his sexual encounters with his sister and mother, the mother arrives at her son's flat to invite him for the weekend. She knocks on Karl's flat because her son is not in, and seduces Karl in the kitchen. When Trevor comes home, Penelope asks her son to come home for the weekend and invites Karl too. The following day, Karl is surprised by both Evie in the summer house, and then Penelope, when they go to get a takeaway meal, who utilizes her friend's flat to treat Karl to some hot sex.