[identity profile] channelpenguin.livejournal.com 2012-05-18 12:50 pm (UTC)(link)
re: Ovulating women perceive sexy cads as good dads

The point not specifically made is that "stay with current (presumably reliable) bloke but screw 'sexy' one hoping to pass off his offspring as regular blokes" is a valid (and pretty good) reproductive strategy, since 'sexy' blokes have more offspring, so if you have a boy, you [probably] gain extra grandkids.