Quote Originally Posted by Future Esthar
Zell getīs his blonde hair from Seifer and Selphie gets her gray hair from Squall.
If Seifer and Edea give birth to Rinoa and Rinoa isn't blonde,and Rinoa marry Squall and have offspring, the chance of the kid is blonde is almost 0% because most likely kids take the genes of the parents not the grandparent since the grandparent already passed down their genes to the parent.

Which mean Rinoa is non-blonde so mean she didn't catch Seifer's hair genes so the kid she has is also a mixture of her partner's genes which is Squall which also isn't a blonde either.

So the offspring most likely won't be blonde.