I blinked up at her and then looked down at myself, “Than-” I started to say and stopped, looking over myself. Slender body, pale red coat, red mane, horn on my head.”

“Unicorn, huh?”

... I turned and walked to look myself over in the mirror.

Pale red coat covered a somewhat petit pegasus with long red mane. On my flank there seemed to be a fire made from fire.

Typo?

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Yes, fixed. Sorry.