These celebrity kids look so much like their famous fathers that sometimes we do a double take when we see them in photos. Kids looking like their biological parents is nothing new. But kids looking so much like their celebrity parent, they could pass as twins? Now that's next-level. Why? First, because they're the offspring of a celebrity heavily followed by the media, and second, because we're all admittedly (and some of us not-so-embarrassingly) obsessed with celebs. Sorry, not sorry. Just look at Reese Witherspoon and her daughter, Ava. The 23-year-old is nearly the spitting image of her mom at...