The Mystery Of Female Sex Drive Roy Baumeister | Chris Williamson
0:23 = Why there are such genetically varied men compared to most women being reasonably genetically similar
15:36 = The woman's adaptive sex drive (which type of women like crazy sex)
31:53 = Gay siblings affect on other siblings
37:29 = Male verses Female sex drive
1:00:58 = Females controlling females
The book he was talking about I actually owned for a while, learnt some good stuff from it and quote it sometimes to people - the author is Australian.