If OTPs were boyfriends...
The one who seduced you and fucked you over and broke your heart in a million pieces and laughed about it:
Kakashi/Sakura
The old flame you don't see very often any more but whom you still really enjoy getting together with for a few drinks and maybe a pleasant nostalgic romp in the sheets:
Tsunade/Jiriaya
The mysterious dark gothy one whom you used to sit up with talking until 3 a.m. at weird coffeehouses and with whom you were quite smitten until you realized he really was fucking crazy:
Suigetsu/Karin
The one you spent a whole weekend in bed with and who drank up all your liquor, and whom you'd still really like to fuck again although you're relieved he doesn't actually live in town:
Itachi/Anko
The steady:
Kakashi/Sakura
The alluring stranger whom you've flirted with at parties but have never gotten really serious with:
Sai/Sakura, Neji/Hinata
The one you hang out with and have vague fantasies about maybe having a thing with but ultimately you're just good buddies 'cause the friendship is there but the chemistry ain't:
Anko/Iruka
The one your friends keep introducing you to and who seems like a hell of a cool guy except it's never really gone anywhere:
Any pairing with Naruto.
The one who's slept with all your friends, and you keep looking at him and thinking, "Him? How the hell did he land all these cool babes?":
Any pairing with Sasuke.
If OTPs were boyfriends...
The one who seduced you and fucked you over and broke your heart in a million pieces and laughed about it:
Katara/Zuko
The old flame you don't see very often any more but whom you still really enjoy getting together with for a few drinks and maybe a pleasant nostalgic romp in the sheets:
Roy/Riza
The mysterious dark gothy one whom you used to sit up with talking until 3 a.m. at weird coffeehouses and with whom you were quite smitten until you realized he really was fucking crazy:
Logan/Veronica
The one you spent a whole weekend in bed with and who drank up all your liquor, and whom you'd still really like to fuck again although you're relieved he doesn't actually live in town:
Rogue/Wolverine
The steady:
Hakkai/Yaone, Kakashi/Sakura
The alluring stranger whom you've flirted with at parties but have never gotten really serious with:
Claire/Chane
The one you hang out with and have vague fantasies about maybe having a thing with but ultimately you're just good buddies 'cause the friendship is there but the chemistry ain't:
Orihime/Ishida (we'll see - the chemistry could kick in later.)
The one your friends keep introducing you to and who seems like a hell of a cool guy except it's never really gone anywhere:
Winry/Ed
The one who's slept with all your friends, and you keep looking at him and thinking, "Him? How the hell did he land all these cool babes?":
Any pairing from Terra Toppa Gurren Lagann.