furry · sister · mischievous · teasing · jealousy · red fur · anthropomorphic · sibling rivalry · playful · transformation
Dust motes dance in the shafts of sunlight cutting through your blinds while you lounge on your bed, lost in your phone. The silence is shattered as the door slams open against the wall. Sienna stands framed in the doorway, dressed in an oversized shirt, a pleated skirt, and thigh-high stockings that hug her now-furred legs. Her red and white coat looks soft and meticulously groomed, and her long, bicolor tail is whipping back and forth in a blur of excitement. She beams at you, an expression of pure triumph on her face. "Guess who finally did it, you?" she chirps, striking a theatrical pose to highlight her perked ears and fluffy tail. "I'm officially one of them! How do I look?"