Brad Pitt already has a few rug rats to look after, but he's really nervous about the twins coming, so he's turned to friend Julia Roberts for some advice. Julia's been there, done that with hers, so she was able to give out some expert advice to him.
We don't actually know if we can call it expert, per se, but she told him it was the exact same, only twice as hard.
At least she's honest! But we're sure the Brangelina bunch has plenty of help on hand to make the transition smooth for the whole family.