A Slave For The Demon 3: M/F Demon Monster Paranormal BDSM

My demon master has taken me to Hell. Here, I will undergo my punishment for calling him to the mortal plane. There will be pain and there will be pleasure. He will devise exquisite torture, and make me perform for an audience of demons. Asim is here too, and he will undergo the same trials as I. At the end, the demons will choose a winner; one mortal to return to earth, the other to remain in Hell. Which shall I be? 

This story features BDSM elements; whips, chains, dominance and submission. It also features voyeurism, finger play, fist play, rear entry , a demon with a very, very large appendage, and a pair of imps who like to join in on the action. Not to be read by the faint of heart. 

This is an 8000-word short story, and the conclusion of the 'A Slave For The Demon' Trilogy. 

Except: 
There was a shimmer in the air all around us. Red mist swirled up from the ground, making whirling eddies around Asim and I. Each eddy began to solidify, growing denser and larger, until we were surrounded on all sides by a dozen or so demons of all shapes and sizes. Tall and short, twisted, stretched thin, bent and hunched, red demons with twisting horns clamored around us, watching the two of us with malicious black eyes. Each of them had imps on their shoulders like my demon master, two exact replicas of themselves. All were naked and all were male, with huge - - of various sizes and thicknesses hanging down between their legs. They spoke to each other in a deep guttural language that I could not understand. 
I watched them uneasily, searching the crowd for my own master. He materialized a moment later from the red mist and strode towards where Asim and I sat. The other demons drew away from him as though frightened. 
A surge of something: lust, love, and desire to serve, flooded through my being at the sight of him. He was the finest specimen of the demons; taller and broader than the rest and perfectly proportioned with rippling muscles, broad shoulders and a tight waist. His face was more angular than any human's with a jutting chin and high pointed cheekbones, yet he was handsome in a devilish, unforgiving sort of way. His delicious - - hung down between his legs, the size and girth of a bull's. At the sight of his meat, wetness spread between my thighs. I would do anything to feel him inside me again. I would take whatever punishment he dished out. 
My demon master stepped forward until he stood close to me. The heat of him radiated towards me like a furnace. I wanted to rush towards him and feel the delicious agony of his scalding skin. 
He gazed down at me with cold, black eyes then turned to address the other demons. "I have brought some pets for our pleasure." His voice was a bass rumble. "They must be punished and re-educated. What shall we do with them?" 
"Impale them on spikes!" yelled a demon. 
"Set the imps on them!" yelled another. 
My demon master raised a black-clawed hand and the crowd fell silent. "I propose a competition. At the end, I shall choose one of my pets to take back to the mortal realm. The other will remain here and you may do as you wish with them. Is that acceptable?" 
There was a murmur of acceptance all around us. 
"It would amuse me to watch my pets mate first. Then we can decide what is to be done with them afterward." 
It took me a moment for the demon's words to sink in. 
He wants Asim and I to - - ? In front of all these demons? 
My demon master turned his black eyes to me. "Go on, little pets. Show us how you - -." 

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