This story is a sequel to Love Is Its Own Reward
Everypony knows Spike would walk across hot coals if Rarity asked him to, even if he wasn't fireproof. A few years down the line, he is still happily helping her design dresses and mine gemstones. However, his fealty is to Twilight Sparkle, and everypony knows that without him she might accidentally level Ponyville! When Rarity finally feels he is ready for a real relationship, how will the dragon choose between her kiss and his duty?
A follow-up story to Love Is Its Own Reward, set a few years into Friendship is Magic's future.