okay, so this may not have been what you wanted when you gave me this prompt by this is what came to my mind. if i could name this chapter one thing, it would be 'the great Lin robbery' anyway, read, review and enjoy

Item:Robbery

Pairing: Kyalin

Prompt by: YOLO1882

Kya was strolling the grounds of Air Temple Island, when she saw her little brother talking to an air acolyte. She thought nothing off it, that was until Tenzin leaned down and kissed her, nearly like he had done it before. She waited for the acolyte to disappear into the dormitories, before walking up the last airbender. "You disgust me."

Tenzin jumped at the voice. "Kya! I was, uh, jus-"

"Save it. How could you do this to Lin? How could you cheat on her? Do you even know what you have, or could have?"

"Don't you lecture me. You're not mum."

Kya's eyebrows furrowed in anger, she was so close to punching Tenzin, she could barely contain herself. "Do you even plan to tell her?"

"I'll tell her when I'm ready."

"You mean when you grow a spine." Kya scoffed and shook her head in disbelief. "I am going to give you one day to tell her, if you don't then I will." With that, the waterbender turned around and stormed off.

A week had gone by since Kya caught her brother kissing that teenage acolyte and the anger was boiling up inside of her. She knew that Lin wasn't her girlfriend, but she cared for her as though she was. And it hurt her knowing that someone was sneaking behind her back, so there was only one thing to do, tell her.

She walked up to the metalbender's apartment and lightly knocked. The door opened and she was met with a dishevelled Lin Beifong, clad in only a tank and baggy pants. "You look terrible."

"Thanks. Would you like to come in?"

Kya stepped past the younger woman and into the spacious living room. "I didn't wake you did I?" She asked as she took a seat on the couch.

"Only a little. Probably a good thing that you did, the couch would have done a number on my back." Lin took a seat on the far side of the couch and stretched her arms across the back. "So what brings you here? I thought you knew I was coming over later."

"I know but I need to tell you something and it can't wait any longer."

Lin's brows furrowed together at the serious tone of the woman before her. "What's wrong? Are you okay?"

"I'm fine. It has nothing to do with me. Lin, I saw Tenzin kissing an acolyte last week." Kya felt a pang in her chest as she watched her best friend's face contort into many emotions before settling on anger.

"Why are you telling me this?"

"I told him he had to tell you, or I would. So here I am. I understand if you want me to leave, I ju-"

"No, I want you to stay. I'm going to get back at him and I think it's best if you stay here."

The metalbender stood, muscles flexing as pieces of metal armour flew past her, securing itself aggressively to her body. Just as she was about to leave, she felt a calm hand place itself on her shaking shoulder. "I know what you're going to do, but I have a better way to get back at him."

Lin was taken aback when she felt soft lips press against her own. Her mind was racing, questioning what was going on but instinct kicked in, causing her to place her hands on the older woman's thighs, prompting her to jump and wrap her legs around the strong woman's waist. Lin carried her to the bedroom and put her forcefully on the bed before discarding her armour quickly so she could pin Kya down on the bed. "What are we doing?" Lin said breathlessly between pants, as she began to undress Kya's tanned body.

"I'm finally having my dreams realised by stealing my brother's girlfriend and you're about to get payback by having angry sex with his sister. The way I see it, we're both winners." She leaned up and resumed kissing the woman above her, smiling when she heard her moan in appreciation.

Kya and Tenzin sat across from each other at the dinner table, eating in an uncomfortable silence, only to be broken by a knock at the door. The airbender quickly stood up, happy to get away from his big sister. He opened the door and allowed a smile to grace his face at seeing his girlfriend there. "Lin, I thought you weren't coming."

"I had something come up at work."

Tenzin closed his eyes and leaned down to kiss her but when he didn't feel anything against his lips, he opened his eyes to see that she was now walking towards the dining room. "Uh-, Lin?" He watched as his girlfriend sat next to his sister and kissed her. Not a peck on the cheek, or a quick kiss but a full on tongue dancing kiss. "What is the meaning of this!?"

Lin's head turned dangerously slow to the man, emerald eyes growing dark as the anger began to resurface. "Kya told me what you did, so I decided not to waist anymore time with you and give myself an upgrade of my own."

Tenzin looked between the two women, face completely red, before turning around with a gust of wind and stormed out.

Lin let out a sigh of relief, happy that the whole ordeal was finally over.

"You know, Tenzin's bed is bigger than mine, I wouldn't mind stealing that too."

Lin turned to her new love and smiled. "I was thinking we could steal his whole bedroom."

"Spirits, I think I love you."