All R/hr, my ship to the death.
Obvious
"Ron, this may come as a shock to you, but you and Hermione are trees."
"Er... Ginny? I do believe that Hermione and I are humans."
Harry laughed. "See? Thick. Like a stump."
http://www.fictionalley.org/authors/gwendolyn_james/obvious01a.html Strategic Maneuvers
"What? You said you wanted it to be interesting..." Hermione said, blinking innocently, though her cheeks were becoming slightly pink.
"But I was joking!"
"Well I'm not. Actually..." she said, pursing her lips again and looking back down at the board. "How about we play strip chess?"
"What in bloody hell is that?" Ron croaked, feeling himself go pale.
"Okay, let's say if you capture an opposing player's pawn you have to..." She searched for a moment and then grinned like a cat over a bowl of cream as she said in a clear voice, "Undo a button on your shirt or trousers?"
Ron glanced down at his white button-down shirt and then up at her blouse. There were as many buttons as there were pawns on the chessboard. He gulped.
"Are you serious?"
http://www.checkmated.com/story.php?story=3112