Castiel didn't seem different. He was smart, but rarely showed it. He wore band shirts, black jeans, combat boots and sometimes a tan trench coat. Castiel had messy dark hair, and bright blue eyes that seemed to look in your soul.

But why did he have a doctors note not to change for gym? Why did he never wash off after?

Simple.

Castiel was keeping a secret. One he'd rather not talk about.

Castiel had been born in a girls body.