Negotiate

What choice did I have? I quickly weighed my options, but the demon was far too powerful for my resistance. Heck, I couldn’t even manage an orc, let alone this fel spirit! As much as I wanted to resist, I... couldn’t!

“F-fine...” I murmured. “As long as you’re gentle... and respectful, I’ll let you do it!”
“Gentle and respectful? This is simply not up my alley, paladin”, the demon laughed. “but I can promise you’ll have fun!”
“No, I won’t! We humans are not sick and twisted like you!”
“Oh, but you are, you very much are! Do you think you’re the first human I meet? No! Almost every day, there’s a... wannabe warlock”, she took a quick glance at the unconscious human a few yards from us, “that tries to summon me and... control me! Do you think this can be controlled easily?”

She took a step back, letting me see all of her... decadence in its fullest glory! Her large breasts swaying above her equally large cock left me gulping as I noticed that I was more than just nervous...

“Now, let’s stop wasting precious time... and let’s see just how pure this paladin is!”

She hooked her claws into the waistband of my thin breeches, tugging them down past my hips and letting them pool around my ankles. My shamefully swollen shaft sprang free in the dim cellar light.

She chuckled at the eager state of me, then reached down and grabbed her own massive cock. Lifting me effortlessly by the thighs, she hitched me up against the sturdy oak barrel. I gasped, my legs wrapping instinctively around her waist as her heavy, voluptuous breasts crushed against my bare chest. She guided her slick tip to my aching entrance, teasing the rim for just a agonizing second before driving herself smoothly inside.

I threw my head back, a loud, helpless moan tearing from my throat as her incredible size stretched me to my absolute limit. She filled me completely, her broad head plunging deep into my inner walls and hitting every sensitive spot at once.

“W... Wait! S-s-s... slow down!”, I tried to plead, but to no avail.

Before I could catch my breath, she began a slow, agonizingly deep rhythm, sliding out until only her tip remained before burying herself all the way back to the hilt. The friction was searing, slick, and impossibly good. Every heavy thrust sent shocks of intense pleasure shooting up my spine, making my toes curl and my hips involuntarily buck forward to meet her pace.

Down below, her heavy scrotum slapped steadily against my bare rear with every plunge, a wet, carnal rhythm echoing off the stone walls alongside my shameless, breathless whimpers. My shaft rubbed helplessly against her flat stomach with every surge, dripping pre-cum over her skin as she picked up the speed, turning her deep strokes into a relentless, pounding rhythm that left me completely undone.

It must have been an hour, maybe two, before she was through with me. By that point, my balls had been completely emptied of their contents, her balls had filled up my ass, and my physical and mental stamina had all but evaporated.

The demon summoned herself a portal back to the void, but not before she burned a tiny demonic sign above my right buttcheek...