Headcanon 2: When they were younger, Lin was always sticking up for Tenzin when it came to Bumi. Being the baby in the family, Tenzin was always teased by his siblings, but Bumi was the worst. That stopped the day when Lin sent Bumi flying 20 feet away via earthbending. After that, Bumi always kept his distance when Lin was around.

An eight year old Lin arrived on Air Temple Island with her mother, a smile on her face. She was excited to show Tenzin the newest earthbending technique that her mother had taught her.

"Alright, my little badgermole, I know you're dying to go see Twinkletoes Jr." Toph laughed, sensing her daughter's eagerness. "I'll be inside talking with the Airhead, Sugar Queen, and Snoozles. you go have fun, and try not to kill anyone."

"Mother!" Lin complained.

Toph laughed and felt Lin's footsteps walk away before she started her way up to the house.

Lin used her seismic vision to sense that Tenzin and Bumi were in the pavillion and ran towards there. As she approached, she heard the brothers arguing.

"Bumi, leave me alone! I want to finish meditating before Lin arrives!" Tenzin said to Bumi.

"Oooooooh, so your girlfriend is coming over soon!" Bumi laughed.

Lin saw that Tenzin was sitting on the ground like he was ready to meditate, but every time he went to close his eyes, Bumi was there to nudge and bother him.

"She's not my girlfriend, Bumi!" Tenzin argued.

Lin smiled as she saw his face turn bright red. Bumi noticed this too and began laughing.

"I kneeeew it! You loooooove Lin!"

"What?! No I don't!" Tenzin's face was turning redder by the second. "Just... leave me be! I need to meditate!"

Tenzin took a deep breath and closed his eyes. Everything was silent for a good ten seconds before Bumi started screaming,

"TENZIN AND LIN SITTING IN A TREE! K-I-S-S-I-N-G!"

Tenzin's eyes flew open and he glared at his brother.

"Bumi! Go away!"

"FIRST COMES THE LOVE! THEN COMES THE MARRIAGE! THEN COMES TENZIN WITH THE..."

Lin watched as Tenzin seemed to be getting upset at his brother's words and fury began to bubble up inside of her. She took her stance and stomped her foot on the ground.

Bumi's song was cut short as he was knocked into the air by a pillar of earth. Tenzin gasped as he watched his brother sail through the air and land hard in the grass about 20 feet away.

"Hey Tenzin!" Lin greeted cheerfully, stepping towards him with a smile like nothing had ever happened.

Tenzin jumped and turned to look at Lin.

"Oh hi, Lin!" Tenzin replied, nervously. He paused. "Did you...?"

"Hear what he was saying? Yes. Raise that pillar into the air? Maybe." She said with a smug smile. "But that'll be our secret."

Tenzin chuckled and went to stand up.

"No, finish your meditating. I'll wait. You deserve it."

"Okay," Tenzin said, returning to his position.

"No promises." She chuckled, as she went and sat down next to her best friend.

"Lin?"

"Yeah?"

"Thanks." Tenzin gave her a smile.

"No problem, Twinkletoes Jr," She punched him in the arm hard enough that he almost fell over.

Tenzin rubbed his new bruise with a smile as he closed his eyes. He was grateful to have Lin around to stick up for him.

Together, he and Lin sat in silence with smiles on their faces as they listened to Bumi cursing them in the distance. Both of them knew that Bumi would keep his distance from then on, especially when Lin was around.

And that he did.

Review, review, review! Until next time, stay classy Linzin fans!