E.L. James’s “Mommy Porn” trilogy has held the 1-2-3 lock on the New York Times best-seller list for weeks now, and those numbers add up — to 10 million copies, in six weeks, says Knopf Doubleday. Another fun Fifty Shades fact: The books apparently saw a big sales jump right before Mother’s Day. So congrats, America, for finally taking that "just buy me something fun!" suggestion at face value. Your mom surely appreciates it.