Succubus Melusine Returns in the Night to Take the Pee of a Stranger

The witches may thrive on their thralls' seed, but there is another essence their slaves can offer—warm and golden, meant for a purpose far stranger. For the witches' hell-flowers to bloom, they demand a rare nourishment, one that grants their mistresses eternal youth. What could be more fitting than turning a bound cum-slave into a vessel of this offering? Shackled and helpless, he is made to yield directly from his body, a tube drawing it out from deep within. The witch smiles as the stream is delivered, knowing her flowers will drink well tonight.