I had a bizarre dream (which I recountered to @greenpeenqueen in obscene detail) about a costume party on the Enterprise, Spock and McCoy spend the evening being distracted by how hot the other looks in their outfit.
They wanted good ol’ Kirk and Spock as how they were in ‘The City on the Edge of Forever’. In my mind while drawing this I was thinking that Jim making a humorous quip about the groceries he bought and Spock just reacts in his usual slightly unamused way.