Ashton Kutcher may have social media figured out. He flirts with his wife, Demi Moore, in front of almost five million Twitter followers and more than three million Facebook fans, but he isn't sure if the couple will have offspring of their own. When Cynthia McFadden asked Ashton if he wanted a biological baby on last night's Nightline, he said, "I don't know". He also noted that because Demi has three daughters — Rumer, 21, Scout, 18, and Tallulah, 16, — their relationship has always involved kids. Despite his wife's questionable child bearing age of 47, Ashton said he's "not worried" because he thinks Demi is a "genetic freak".