Sometimes youth can be troublesome for many.
For the under dog it's a hard life of struggle
For the prince it's the life of loneliness
For Vector it was a life of thievery
For Castiel a life of pleasure
Both rivals, one to gain a home , one to gain love, hatred towards each other stronger than any siblings rivalry.

Left to right: Vector-Castiel.
Creatures: Duunes ©
Art/ characters © me