Fathers have NOTHING to do with the woman having fraternal twins - all the Mom. Brad can have twins all over his family and still not produce any himself. One egg = one baby, Two eggs=2 babies etc...
Lisa Marie's FATHER was a twin and Priscilla's family ALSO has twins - Lisa Marie had a healthy dose of twin producing traits from BOTH SIDES of her family. Hers are probably natural...but who knows, she is 40, fertility does go WAY down after 30 - but the chances of twins go UP. Hard to say, none of my business.
There are twins all over Hollywood since it became possible to pick the sex and even the genetic perfection of your babies - stars can get their baby-making over with in one shot if they want - and be guaranteed a genetically PERFECT healthy baby too. Just takes a LOT OF MONEY. Angelina and Brad were seeing a fertility Dr before (and after) Shiloh - it's pretty common knowledge in Tinsel Town. Next time I expect Jolie-Pitt TRIPLETS or QUADS - the more babies, the more MONEY for their private charity and 3 or 4 times the happy, positive PR. I think they should go for an even dozen kids.
I am so waiting for the 1st celeb triplets - I know that's gonna be the next big accessory in Hollywood - you watch, within the next 18 mos somebody is gonna go for it. Any bets on WHO? Jennifer Anniston maybe?
My Opinion