This story is a sequel to Hidden Desires 2: A Discovery, a Confrontation and Acceptance
Princess Luna has finally found love in Princess Twilight but once Celestia discovers this, she reminds her younger sister of a bet they made long ago regarding romance. Luna lost the bet and now she has to pay up. Twilight, not wanting to be parted from her marefriend shocks Celestia with a stern talking to with hopes of changing her mind regarding Luna having to pay up.