Out of His League
Toph was not a fan of rules. She always thought that they held her back.
Aang grew up believing that rules were there for a reason and he got very nervous when someone broke them.
So, when Toph came to his house, even though she had been grounded for a month, even when giving (or bribing) him a brand new Xbox, Aang was a little on edge.
Toph was cool as ever, not giving a shit about anything or anyone…except Aang. She was not the most forward with her emotions like Aang , so Aang had trouble guessing what she was feeling. Assuming that she was feeling anything at all.
Both of them were lying on his couch, as usual, watching crappy old movies and doing nothing till the sun went down. Aang felt uncomfortable, but Toph was fine. She was always fine. Sometimes it bothered Aang that she would never show emotion, except anger or frustration. Occasionally, she would get worked up and sad, but it was only when something really bad happened.
Aang was the exact opposite. He was in the world of feelings and believed that talking about things was therapeutic. He thought 'normal' was when you expressed your feelings. 'Normal' also meant following the rules or not taking unneeded risks. Toph felt that the opposite was the norm.
They weren't doing anything. Toph was just sitting with her head on his lap, with the new Xbox still packaged up in the corner of the room. The TV was on but they weren't watching it. Aang felt like he needed to say something, just to get Toph to say something back.
"Um…" Aang started.
"Don't." Toph stopped him.
"I didn't say anything." He cleared his throat.
Toph nuzzled closer to him without another word. She never needed to say another word.
Aang was uncomfortable about the whole 'rebel' thing. Some days he thought Toph was out of his league. But still, he wouldn't change anything about her. He had to remind himself that every so often, but he loved her for who she was.
Toph never said how she felt about him, at least not directly. Nuzzling, silence, and the occasional punch in the shoulder was her way of 'talking' to Aang.
Aang was a smart kid. He usually got the message.