After a long, hard day of dealing with the latest crisis, Princess Celestia is having trouble getting to sleep. Luna comes to offer her comfort, but they end up "bonding" a bit more than either one had planned...

Written as an entry for the Sibling Incest Contest, entirely because money is being offered. I write a bit of erotica on other sites, but it's not typically clop, or TV show characters for that matter, nor is this a fetish which I myself hold (not that I haven't entertained it for others a few times). I had a fun time writing this one though, and I think it came out as a great mix of cute, fun, and thoughtful, so I'm glad somepony put down the incentive to leave my comfort zone. :3

CONTENT WARNING: Celly says bad words! :o