Ships, Sheep, and Happy Endings — Zoe Cannon

She thought the hard part would be disguising herself in her brother's armor and rescuing the beautiful princess from a dragon. Or maybe revealing her true face to the princess afterward. Or asking the king for his daughter's hand in marriage.All that was easy compared to figuring out the whole happily-ever-after thing. Especially when it turns out a dragonslayer and a pampered princess don't actually have that much in common. All of a sudden, the thought of slipping on that armor again and finding another dragon to fight sounds a whole lot better than frilly dresses and wedding bells...This short story is 3900 words long. It is also available in Not Your Heroine, a fantasy short story collection.