Ship/Character: Inui/Kikumaru, Atobe/Tezuka, Atobe/Hiyoshi, Yanagi/Kirihara, Momoshiro/Kaidoh, Mizuki/Yuuta, I'd prefer the ships I listed but feel free to choose any of your own
Fandom: Prince of Tennis
Major Tags: Underage Characters (possibly)
Additional Tags: Inui Juice, Atobe Keigo, mischief and hijinks, boys being boys
Do Not Wants: death, character/ship bashing, poop, golden showers, vomit

Prompt: our little secret