One theory is that the paradox animals might be chimeras - sort of the opposite of identical twins, two non-identical siblings that merged into one. Chimeras might be fairly common in ball pythons for some reason and only now that we have lots of clutch variety do we notice it. When two normals merge into one you wouldn't see where one ends and the other starts but albino with piebald shows. No telling which sibling has the reproductive organs. Maybe could even turn out that each sibling could have one of the testis/ovaries. I’ve heard that male snakes alternate which hemipene they use for successive locks but I’m not sure if each hemipene connects to only one testis but if they did and both siblings where male it could bred as an albino one lock and a piebald the next.