Sorry, i'm a little tied up at the moment if you could please leave a message after the beep
Restraint.
The first time was canon…
The second time…
"Zuko, this is itchy."
"Try to endure it."
-glare-
"It can't be that bad."
"That's it mister, I was content to just get untied and finish what we started but I am so not in the mood now, you are sleeping outside tonight."
"Katara be reasonable, we're royalty." He gave her a meaningful look, "Aren't we a bit above that?"
"If you want to ever have any heirs then no we are not."
It rained that night.
The third…
"Now this I like."
"I will not show fear, fear is the little killer, fear is the mind death-"
-10 minutes later-
"Oh, come on!"
"Well, what do you expect with ice? Firebender, remember?"
The fourth…
"I really thought rope would work"
A dull voice, "Again, fi-re-ben-der"
"Do you want to sleep outside again?"
The fifth…
The chains were not thick enough and were not going to last much longer.
"Do you guys need a hand with that?"
"TOPH! This isn't what it looks like! Um… You know what I mean…"
Zuko glared, Toph was blind but knew and ignored him.
"Hey I've been feeling your vibrations all week, Sugar queen, I know what it looks like and it looks good."
Both Zuko and Katara were unnerved by that smile.
"Look my boyfriend is a monk, I need inspiration. Besides I can help, I can put a pair of those Dai Li cuffs on for you"
"Thank you but no, Toph. Could you give us some privacy?"
-A huff-
"Fine. But standing here or on the other side of the campsite I can 'see' you just as well."
Katara looked thoughtful for a second and then pushed Zuko into an adjacent stream.
Zuko looked up into the smiling face and luminous eyes of his wife, and realized he was trapped all along.
From across the clearing…
"YOU GUYS SUCK!"