This story is a sequel to Setting Her Heart Aflutter
(2nd Person x Fluttershy) After the wedding, you and Fluttershy now live a happy, relaxing life. You love each other like nopony ever could, and you treat your new wife with the same level of kindness and respect that she is accustomed to.
But very soon, a very big change is about to occur in your marriage, and from the looks of things, it may not be just the two of you anymore.