Jo is going to her sister's for the weekend. Chrissy worries that Robin will make sexual advances towards her. Later on Saturday, he brings his girlfriend Liz (Jenny Hanley) back to the flat, to which Chrissy becomes jealous. Later that night, Chrissy deliberately ruins his evening by walking in, pretending to be pregnant by him and falsely claiming that she and Jo are his lovers. Liz walks out.
Original Broadcast Date 5th September 1973