Helplessly Eaten Chocolate and Then Jerked Off

The setting is perfect. I'm in a dark, black BDSM room with my slave. He's tall, well-built, and strong, but he's kneeling in the corner. First, I really turn him on with my ass. Then I wrap his muscular body in bright red ropes. I hoist him up into a hopeless shibari suspension. He hangs helplessly in the air. And what a coincidence... his head is right at the level of my ass. He greedily buries his face between my butt cheeks. But the pleasure quickly turns into brutal reality. I've filled a container with fresh piss. What follows is a ruthless game of eating and swallowing while suspended. Load after load of my warm piss lands in his mouth. He has to keep rinsing it down with more piss. With every portion, the struggle gets tougher. The rule is clear: he won't be let down until everything has been swallowed without a drop left.