"Jus' relax there Hon." Leonard McCoy mumbles into Spock's ear, his lips tickling the outer edges of it.
Spock jumps slightly as the cold oil comes into contact with the skin on his back. "Is not the point of this that I am not relaxed?" He replies stubbornly to his partner.
McCoy grinds his hands hard into Spock's back for a second before answering, "Well, you can at least try."
"I am letting you perform a massage on me." Spock points out, turning his head so he can look at Leonard.
"Yeah, well, I'm never gonna get anywhere if ya don't relax. I'm not a Klingon, Honey." McCoy retorts as he continues kneading—trying to knead—the tension away.
"Thankfully." Spock closes his eyes after that, trying as Leonard had asked.
A few minutes later he feels nibbling on his ear, getting his attention. Without opening his eyes—he is tired, if nothing else—Spock says "Yes?"
"I have an idea, jus' stay right here." He can feel Leonard push himself off of his bed, "An' keep your eyes closed, it's a surprise."
Spock nearly sighs. The first surprise had not worked out, he is still as tense as ever. However, he waits patiently with his eyes closed, as instructed. Maybe if he falls asleep he'll take pity on him, and not wake him up for another surprise.
That hope is dashed when he feels his partner settle himself back onto the bed, asking "these sheets aren't all that important, right?" That is not comforting.
"No, they are not, but…" He doesn't get much further as Leonard pours something on his back; it is not oil. His eyes snap open to see the doctor smiling at him, trying hard not to laugh.
"Honey."
Spock can't help but feel the tension drain out of him. That does not mean that Leonard is off the hook though, so to speak. Spock grabs his partner and pulls him close, covering them both in the sweet substance.
The sheets will need to be replaced in the morning.