Adorable Spock/Kirk fic

[supernumerarysm.livejournal.com]

I'm looking for this longish one shot in which the crew (or maybe just the command crew) land for shore leave and disembark, only to find themselves in a very muddy field. Kirk immediately gets a look in his eye and turns toward Spock, and they end up getting in a mudfight. More incredibly cute and hilarious than sexy. It's really sweet, and I can't find it for the life of me!!