Threadhopping: Sure!
Fourthwalling: Only if it's appropriate.
Offensive subjects: Not likely, but please ask if you're not sure.
Shipping: Auron, Braska, and I'm open to cross-canon. Strong preferences towards anyone 30+ and absolutely no one under 25.
Format: I default to brackets but I can do prose too.

Hugging: You can try!
Kissing: I don't blame you.
Fighting: BRING. IT. ON.
Injuring: He's no stranger to injuries, so go ahead.
Killing: As if. (Real talk: Ask first.)
Sex: With lead up. I'm not into jumping right into smut.
Using telepathy/mind reading: Ask first, even if you are canon familiar.