This popped into my head as soon as I saw the scene where Cyrus comes out to Buffy. Also, I aged them up to ninth grade. Please enjoy!
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Andi looked at him, trying to wrap her head around what he just said. "You like... Jonah?" she repeated. Now it was all starting to make sense. The depressed look on his face when she and Jonah were together, how he would look away when they flirted with each other. She didn't know how she hadn't come to that conclusion on her own.
Cyrus looked down. "Please don't be mad," he begged. "I swear I didn't mean to, I-"
Andi took his hands in hers. "Cyrus, it's not your fault," she assured him gently. She couldn't even think about blaming him, Jonah was great. "I'm not mad. You can't help how you feel." She sighed. She knew what she had to do. Cyrus was a good friend, no. Scratch that. He was an excellent friend who would do anything for her. It was time for her to return the favor.
Cyrus looked at her hopefully. "You're not angry with me for liking the same guy as you?" he asked. "I've heard that situations like these can cause best friends to turn into worst enemies and-"
Andi raised a hand, silencing him. "Cyrus, that will never happen to us. You're my best friend, I don't want you to have to hide your feelings." She smiled at him. "Which is why he's all yours." She saw Jonah approaching them out of the corner of her eye.
Cyrus' eyes widened. "I'm sorry, what was that?"
Andi giggled and lightly kissed him on the cheek. "Go get him, tiger."
Cyrus shook his head. "No, Andi, I couldn't do that you-"
"Of course you can," Andi urged. "No go." Cyrus gave her a grateful smile before turning around to meet Jonah. She couldn't help but grin as she walked away from the two. Once she was out of earshot, Andi pulled out her phone. "Hey, Buffy, are you free?"
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Andi laid her head on Buffy's lap, contemplating her decision to let go of Jonah. "Thank you," she uttered quietly to her friend. Buffy was always that protective friend who she knew would always have her back. The corners of her mouth turned up as a memory replayed in her head. "Hey, do you remember that time in second grade?"
Buffy laughed. "You mean when that kid Luke Terrier was bullying you and Cyrus?" she guessed.
Andi nodded. "Yeah, and he hit me with a jump rope," she said. "You cornered him the next day and told him that if he ever messed with us again, you would make him eat that jump rope." She sat up, and looked into her eyes. "Buffy, you're my best friend in the world."
Buffy pulled her in for a hug. "Andi, you're so amazing for giving Cyrus a shot." She gently kissed Andi on the cheek.
Andi grinned. "Well, as a smart person once told me, it's not about me."
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Just a fluffy little one-shot I came up with. I am a hardcore Jandi shipper, but I adore Bandi. Please review!