Heartbeats AU by catrasredemption (Samonymity)

“Go away,” Catra muttered, curling up tighter and trying to disappear into the corner. Adora didn’t move.

“Are… you mad at me?” Her voice was small and uncertain. Catra’s ears flattened against her head; she closed her eyes. “I… I’m sorry if I made you feel bad, I didn’t mean to—”

“Just leave me alone!” Catra huffed. “Go play with your new friend Lonnie.”

“Are you mad about Lonnie?” Adora was so stupid sometimes. “She’s just like Entrapta and Scorpia—”

“No she’s not! She’s normal, you can be human with her!” Tears pressed against her eyelids, threatening to escape. There was a sudden shuffle of feet; Catra thought Adora was running away, but then a heavy body dropped on top of her, hugging her curled up form as tight as possible.

“I don’t want to be human with her,” Adora said stubbornly. “I’d rather be a wolf with you. You’re my best friend.”

Catra face was pressed into her knees, muffling her voice as she mumbled, “You promise?”

“I promise,” Adora replied without hesitation.