I think this was part of the kink meme, and it was Kirk/Spock. Kirk was touch starved and wound up in a corridor with Spock during a power outage or something, and they had to be close together with only one light. Spock realized something was going on. I remember it describing really well how Kirk felt and at the beginning he was thinking of telling Bones but was too embarrassed to say anything.

That story was great, but if you happen to know of any others on a similar touch-starved theme I would love to see them! Thanks!