"We live in a society full of choice, why does somebody like dark chocolate instead of white chocolate? It's my preference." - Rudo Rudo is a black woman who has never been attracted to black men. She's always dated white men and eventually married one. She says she enjoys the physical contrasts between herself and her husband. The world around us is full of choice, but do you find yourself only dating a particular type? This week, Jenny Brockie hears from people who have particular racial preferences on who they are attracted to and why. We find out what science and sociology have to say about our sexual desires and look at whether racial stereotypes are at play – and whether that matters.