1. Fab

Catrin Nye meets Ruth, who says she was pressured into having sex with strangers through a swingers website more than 100 times. Ruth explains why she is using her full identity. Her story raises difficult questions about consent, shame and control inside a marriage.

If you are suffering distress or despair, details of help and support in the UK are available at bbc.co.uk/actionline.

Presenter: Catrin Nye Writers: Catrin Nye and Jamie Bartlett Exec Producer: Kavita Puri Series Producer: Ruth Mayer Commissioner: Bridget Curnow Sound Design: Ivor Manley Title Track: David Wrench Researchers: Emily Parsons and Liv Facey Production Management Assistant: Daisy Carol Production Manager: Mandy Osborne

All the WhatsApp Messages you hear are voiced by actors.