The Demon Battery: Fucking and Overstimulating the Tied-up Demon

You visit the local Halloween Carnival - Harvest Hollow - and you find yourself alone in the haunted House of Lost Souls. You explore and slip through a door, thinking it's the way out. It's not, but it is where the Carnival keeps the demon that powers the grid. Glowing ropes tie him to the chair. A sex demon, who generates power through taking in the erotic energy of all the people visiting. But he's so overstimulated, so desperate and aroused without any touch or release. When you arrive, you take pity on him. You kneel in front of him, take his cock in your mouth, before wrapping your hand around him and edging him. Climbing into his lap you grind of him, as he's unable to move. He's so grateful, he begs to cum, begs to be untied to touch you. When you finally let him cum, sparks really do fly.