Mistresses - Siobhan confesses all to Jessica

15 January 2008 @ 9-10pm on BBC ONE

Siobhan is wracked with guilt following her passionate liaison with Dominic and confesses all to Jessica, as the drama following the lives of four women and their relationships continues. She claims it won't happen again, but the chemistry between them is undeniable and Siobhan finds it hard to ignore.

Richard asks Trudi out to dinner, but it doesn't go to plan and they have an awkward, stilted date. Overcome by nerves, Trudi spends dinner talking about her husband, Paul. They leave, embarrassed and self-conscious, unsure what will happen next.

Hari and Siobhan consult a doctor regarding their inability to conceive, but are distraught to learn that Hari is infertile. Hurt and angry, he shuts Siobhan out and claims there is no point in having sex now. Back at the office, a distraught and rejected Siobhan is again seduced by Dominic.

Katie takes Sam to see an exhibition of architectural designs in an effort to convince him to return to college. When Sam asks her to inscribe a book, she feels threatened and refuses, suspecting he may know her secret. However, desperate to make up for offending her, Sam invites Katie for dinner.

After trying to distract herself, Katie finally capitulates and goes to Sam's house. They kiss but, appalled by what has happened, Katie leaves as abruptly as she arrived.

Jessica takes lesbian bride-to-be, Alex, to try on her wedding suit. Alex is as moody as ever, but Jessica convinces her to try on some wedding dresses. In fits of Champagne-fuelled giggles, they kiss.

Siobhan is played by Orla Brady, Dominic by Adam Rayner, Jessica by Shelley Conn, Richard by Patrick Baladi, Trudi by Sharon Small, Hari by Raza Jaffrey, Katie by Sarah Parish, Sam by Max Brown and Alex by Anna Torv.