"Mr. Spock."
"Yes, Captain?"
Kirk's head was swimming from the pain their dead adversary had inflicted on him. The danger was past and there was nothing left to do but to carry the body to the morgue and return to the bridge. His muscles were aching far too much to accomplish that task however.
"I... need you to rub my back."
Spock's head tilted slightly to one side. "That is a most unusual request, Captain."
"Please, Spock," he strained. "Just for a minute."
"Very well." Spock stepped forward and gingerly placed his hands on Kirk's back and began to knead lightly, as if he were afraid to hurt him.
"Mm... oh, yes... a little harder please, Mr. Spock. ...Ah yes, that's better. Mm... There's a knot in my shoulder; could you get it please?"
Spock's hands moved up to his shoulders and neck, feeling their way to the knot Jim had described. When he found it, he applied more pressure in attempt to smooth it out. Seconds later, Kirk felt everything below his neck turn to jelly, and he slumped to the floor.
Spock pulled his hands away as he realized what he had done. "My most sincere apologies, Captain."
"Nononono," Jim murmured. "That was just perfect."