PERMISSIONS.

[villainously]

OUT OF CHARACTER.

Backtagging: No, generally he's in a different mindset a week/month/what have you later. I don't like going back to it, I'd rather do something new! This is only true with 1st person, I will work at 3rd person or a log until it is complete (though if it takes awhile I might ask you how it'll end up)
Threadhopping: Sure!
Fourthwalling: As to him being Captain Hook? You bet. His canon is sort of all about that. As to him being from OUAT? Not unless it's a part of the game.
Offensive subjects (elaborate): I don't like non-con, underage relationships, or abusive ships. Otherwise I'm pretty easy going, I'll try anything!

IN CHARACTER.

Hugging this character: Go for it! He... might find it weird, depending on who you are, but sure!
Kissing this character: Yeah, go for it, though ymmv.
Flirting with this character: YES PLEASE. He loves to flirt.
Fighting with this character: GO FOR IT (but let's chat about it)
Injuring this character (include limits and severity): YOU BET (but let's chat about it)
Killing this character: I kinda like him so please don't
Using telepathy/mind reading abilities on this character: Def, he has no way to block it, but contact me about what they're gonna see/feel please.

Warnings: Hook swears, tends to be a little lewd, can be dangerous, picks fights, etc. If he offends your character, I swear to you it isn't personal! He's just a cad, no matter what he'll tell you.