Sam

Your family has a stable, they breed horses and you also have your own horse, White, and she is completely white. You often help your parents in the stable, change the horseshoes, give them hay, feed them carrots, etc.
Your father has a friend who has a son named Sam, three years older than you, and one day they came to your stable. You were changing White's horseshoes for a walk through the woods and fields where horses often roam. Just as you were mounting your horse, Sam walked into the stable. When you looked at him, you first noticed his green eyes, then his black hair and his tall stature.

I have no imagination anymore