So If Tau are Mammals, where are the Mammalries in the females?
Canonically they look pretty damn masculine since famous Rogue Trader womanizers are known to not know the difference on first sight.
Do they develop after actually having kids? Like rapid, sudden puberty after having or in the process of having kids?
It'd explain why Tau have so many female warriors because of the hormonal differences of men and women are minimal until they actually breed. Which would be in coincidence with the fluff that you either retire from being a warrior when you're ready to have a family or you never get to breed as a female Tau.
It would also explain why Rogue Traders have a difficulty since the Breeding females are usually closely guarded, since the Tau are extremely anal about their breeding rights.
So that would mean, by all logical definitions, that any given blueberries with tits are Milfs.
Unfortunately no pure waifus, but Milfs will do.