Oh John. Don't you recognize why?
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At one point, so as not to get sauce on his new violet jumper, John slipped his Bean There apron over his head. He was throwing together the dressing with the salad when he suddenly felt a tug.
Surprised, he glanced back to find Sherlock there, clenching a fork between his teeth, tying the apron strings into a bow. John closed his eyes as the small of his back suddenly felt hyper-sensitized, attempting to rid himself of the tingling feeling.
"There we go," said Sherlock after a moment, walking away. John had to fight himself not to follow him.
Prompt was #5: violet
I have the awkward and terrible American problem of calling jumpers, "sweaters". Sorry to all the UK readers. When I was growing up, I always knew a jumper to be a dress-looking-thing that children wear, or perhaps the awkward orange/back-and-white striped jumpsuits that prisoners donned. It's a slow adjustment. Thanks for being patient with me :)