Um, to make this more relevant to fandom:
Those Deep Places by svilleficrecs - Merlin/Arthur. Arthur discovers Merlin's secret in a very sexy way. You'll see why this made my sick-reading list when you get about three-quarters in. Guh.
Water Lillies by bluebell - Merlin/Arthur, with unexpected dips in water and Totally Necessary for Survival Cuddling.
It occurs to me this may be the first fandom I have ever been in where I could create a thematic rec list devoted to cuddling.
VVC registration tonight, if anyone missed it. V. exciting.