Rating: NC17
Pairing(s): Neville/Harry
Summary: When a fungus goes missing, it needs at least two heroes to conquer a cave.
Warnings: Awkwardness, lack of kinks but pretty graphic, EWE
Word Count: ~8400
Author's Notes: This was written for coffee_n_cocoa, hp_yule_balls. Many thanks to thimble_kiss for holding my hand, listening to hours of whining and for countless and invaluable blue comments.

( ...and Neville took off his backpack, rummaged around for the one item he'd packed but never thought he'd need. When he straightened up he held the whip in one hand with a dangerous gleam in his eye and the last thing the evil plant would ever hear was the sharp whoosh of the deadly weapon... )