Wonder mama Heidi Klum (soon to be Samuel) and her hubby Seal welcomed their daughter Lou Samuel on Friday, Oct. 9. As the fourth babe of the brood, the wee lass will certainly have lots to learn from her older siblings. Henry, 4, and Johan, 2, will offer up tips on dealing with big sister Leni, 5. Meanwhile Leni will be able to teach her baby sister a thing or two about princess life as she seems to be quite the master of the subject. We can't wait to see how the costume loving family will dress the newbie up for the impending spooky holiday though the face paint may be off limits for the tiny tot.