Maybe the colour of their skin has nothing to do with it. Could just be that they're on the same wavelength now that they've got to know each other a bit better.
Don't know though - I never watch the naff programme. Seems like these reality shows are all about your proverbial 15 minutes of fame, and who has the biggest ego. This must be topped by Davina, who has an ego the size of her wage packet. It's the last series she'll be presenting, she says, because she's been offered film roles and wants to be taken seriously as an actress...........