Forget the twinning emoji you just texted to your BFF - those gals are wearing bodysuits. For Ciara and Gwen Stefani, it's all about the sexy, sheer gowns. The pair posed backstage at the Billboard Music Awards, showing off their embellished designs and, yes, a peek at what was underneath. Maybe it was because of Gwen's giddy smile or the silver shine of their looks, but this matchy-matchy moment is bound to stick with us until tomorrow. Just