So I've been reading a lot of erotica (for research mind you
) and noticed that names are all over the place. I come across some odd names-- the more different the better. And then there are always the old standbys. Some names I have seen are so off that it is distracting when reading, but I don't know if that is just me. 
So I am asking you, how do you decide what to name your MCs?
What naming rules do you follow? Are the same as you followed for your kids (if you have any)?
Or are there some sort of unwritten naming rules that apply to Erotica?