Yes, let him cum

You suck in a raspy breath, your mind so overwhelmed with pleasure, you have trouble thinking. All you know if that you want to be a good pet and please your Master.

"Yes, Master, cum in me!" you shout. "I want to feel your hot cum full my pussy!"

The demon chuckles. "I have really enjoyed our game, my pet. Feel free to summon me any time you want to play again." He pulls back, the frilled crown raking your quivering passage again, making you scream as fresh waves of ecstasy shudder through your body, then slams forward, shoving his cock as deep as it will go. He bellows, a wild, fearsome sound of release, and you feel the hot gush of his cum as it shoots from his rod. His cock pulses, pumping the thick cream into your womb, and you cum again as your belly bulges, filled with his essence.

Suddenly, a candle flickers and spits, then winks out. A moment later, the demon vanishes. Without his tentacles to hold you up, you collapse on the cot, shuddering and shaking and strangely cold and empty without his cock inside of you. You expect his cum to flood out of your stretched pussy, but as you stand, your legs shaking, not a drop comes out.

You put your dress back on and finish putting out the candles, then climb the stairs back up to the shop. You have things to do...like look for more red candles.