It was raining. Hard. And John, idiot he was, had forgotten to bring an umbrella. He stared out the window of the airport, waiting for Sherlock to get off his plane. He'd been called for a solo case in Scotland that paid 25,000 pounds. How could he turn it down?
"John, love, you alright?" called Sherlock's lovely, familiar voice. John realized he'd been wearing a rather sour expression.
"Sherlock! I thought you weren't supposed to fly in for another half hour!" John ran to hug him. "And yes, I'm fine, I just forgot my umbrella and look how hard it's raining!" Sherlock smiled. "I can fix that." he gently removed his coat and draped it over John's head.
"No, Sherlock, you'll catch cold!" John protested, struggling to remove the heavy coat. "Too bad," Sherlock said, "You are going to be warm and you're going to like it!" He readjusted the coat over John's head, then grabbed his hand and pulled him out the door.
"Sherlock, can't we grab a cab? I don't want you to get sick. " Sherlock smiled. "Why drive when you can run?" Soon the two were racing down the road, hand in hand.
Fifteen very rainy minutes later, the two were sitting in 221B. John tucked a blanket around a shivering, sodden Sherlock. "You imbecile." John said. Sherlock smiled coyly. "I know how I could get warm." John smirked back. "Really? How?" Sherlock leaned into John and whispered seductively, "I'll make tea." With that, John burst out laughing and went to put the kettle on.