Three drinks or was it five

Sherlock wakes up beside John, naked in his bed, after a night of getting hammered together on very good Scotch. Trying to spare John embarrassment, Sherlock makes as much noise as possible to indirectly wake John, all the while dreading the Very Important Talk he knows John will want to have.

For alexxphoenix42, who posted a wish list on tumblr of fic tropes she'd like to see written. This short fic is to fill number 4:

4) John and Sherlock kiss accidentally while drunk, and then wonder what to do the next morning