Princess Luna, after being denied entrance to her sister's chambers one lonely evening, breaks in to discover her in a delightfully exposed position. Taking full advantage, as is the only suitable thing for a sibling to do, Luna teases her relentlessly for her indiscretion, then, discovering that Celestia is nearly as lonely as she is, the pair enjoy a passionate evening together.

Written for the April 2019 Sibling Incest Contest.