Sokka x Toph
This is a really cute couple. I've seen it a few times, but as far as I know it's quite uncommon. On with it: Sokka x Toph:
Sokka woke up and headed to the lake nearby, his parch was killing him so he ran quickly. Once there he noticed he wasn't alone and saw Toph huddled in a ball and shaking. He walked up to her and asked, "What's wrong."
"Bad Dream." She replied. Sokka cocked an eyebrow and she looked at him stubbornly. He temporarily forgot his parched throat and sat down next to her.
"So what happened?" Sokka asked.
Toph looked up at him with her cute sightless eyes. "In my dream a firebender killed you." Sokka looked down at her with a weird expression on his face. Wow what a nightmare! That's when realization slapped Sokka while Toph kissed him. OH! I get it.