A New Earth: Alsès and Alister Black

Alsès and Alister Black-Cullen are identical in many ways, except for the biggest one: gender! That is until their step-grandfather Carlisle Cullen tells them that they both have the XX and XY chromosomes, like all other metamorphics before theses twins. Now both of them and their uncle Jacob Black-Cullen, and grandfather Billy Black, have been given the opportunity of a lifetime. Carlisle, and Narcissa Black have payed for the four of them to go to this new Earth named Pandora. How will this play out for the young Crossbreeds? Will they even be able to participate with their abnormalities? Let's go find out.

This is before Renesmee Carlie Cullen is born, just before Bella moves to Forks actually. Although, Bella is not a part of this story.

Locations and other things may not be according to fact. Please excuse and/or understand any mistakes.