TODAY had a fascinating story this morning about the "twiblings": a pair of siblings, born five days apart to two different surrogate mothers. Their mother -- the one raising them, but not genetically related to them -- wrote about her family for The New York Times. The children, who are adorable, have DNA that came from their father and from an egg donor unrelated to either the mother or the surrogates. So they're same-age brother and sister, born to different women, via in-vitro fertilization and surrogacy. Four mothers + one father = 2 children. And they all keep in touch.
Confused yet? It's far from a traditional family, yet the mother says she can't imagine having children any other way -- because then she wouldn't have the "twiblings" that she loves.