Creak. Bare feet crept across the wooden floor. The blanket on the bed was lifted and someone slipped under it. The person already in the bed stirred. Blue eyes fluttered open. Shinichi gave the intruder a sleepy, half-hearted glare.
"I'm trying to sleep, Hattori."
Heiji paused, one arm supporting him above the mattress. "Aw. I've been away fer three days, an' this's how y' welcome me?" he teased.
Shinichi reached up, pulling Heiji down. "Get into bed and shut up, idiot!"
Heiji wrapped his arms around Shinichi, pulling the other back against his chest.
The Tokyo detective stayed silent for a bit. Then, he turned in Heiji's arms to snuggle into his shirt.
"It was cold without you," he muttered. "You're like a furnace."
Heiji grinned, leaning down to kiss Shinichi's hair.
"I need t' be that warm, y' ice cube! It's a wonder y' didn't-" yawn "-freeze without me." Heiji could feel his long day catching up. He closed his eyes.
"'Night, Kudo..."
Shinichi smiled. "'Night."
AN: It seemed like it would be longer in my head. :| Inspired by a post (the most recent as of 9/20/14) on the "Imagine Your OTP" Tumblr.