What if Regina adopted a five year old Emma, never knowing the truth about the little girl who became her daughter? What if Emma and Regina lived together happily as mother and daughter for many years? And what would happen when Emma inevitably found out the truth about her adoptive mother?

Emma Swan and Regina Mills have never had the best luck when it comes to love but when they meet they are, quite literally, knocked off their feet. It won't be an easy road, but they can make it through because love is unstoppable. Title based on Unstoppable by Rascal Flatts. AU no curse, no magic. College SwanQueen with a twist. Slow burn.