You won't believe me, but it's true - nothing.

I have a male pastel and a male albino, a female pastel and a female spider. There's only one other BP that I really want, and I can make it once my girls are big enough to breed (Bumblebee). I might also breed for Super Pastels, Albino Spiders, and Pastel Albinos(if possible), but I have what I want.