The GBF, or the Gay Best Friend, as epitomised in Bridget Jones's Diary, is becoming a "must have," for women.
Su Pollard, who has more gay friends than straight, and Richard Coles, presenter of Radio 3's Nightwaves and inspiration for the GBF character himself , join Martha Kearney in the Woman's Hour studio. What do women get from gay male friends that they don't get from their girlfriends?