I wrote two and let the community choose which to post, so here's my other. Warning, this is NC-17.
Scales, Barty Crouch, Jr./Barty Crouch, Sr.
His world is collapsed, broken, and so he breaks him.
This, a father’s right to punish his son.
The boy beneath him screams raggedly, the blood bubbling in his throat, for the cruelest master was never so cruel.
There is red on his cock, red that matches lines from whips, deep cuts from manacles that have scrapped down to the white of shattered bone. Blood runs thick in ice cold air.
His wife begged him, and so he offers. Everything comes at a price.
His career, the price for ruthlessness.
This fuck in a prison cell, the price for freedom.