Well, you can always make it so they did invitro with donor eggs? I mean, Shiba family has LOADS of money, right, so it's not impossible? And it's, what, the early ninties when they were born? So that was totally commonplace by then- if it were a team concieved in the 80s there'd be more trouble with it, but. So you do have options lol, if you want Serena/Lauren still. :) But yes, I agree, genetically, it makes the most sense- unless say, Kevin's mom was white and she helped? Or Mike's mom, for that matter, but that takes more explaining.

Anyway, I was just curious. These are apparently the things that keep me awake at night lol. :P