March Post-It Sketches pt.3 (NSFW frame story)

[dubcon warning]

Few months passed since he got toyed with by the demon he summoned. Never planned for it to happen again, but in all honesty - how much say he had in this matter? Once open - the doors to sin will not close so easily.  
Burning mark on his forehead surely became a testimony to that. It appeared out of nowhere, first itching, like an annoyingly lustful thought in the middle of social gathering. If you scratch it (ha! even think of it too much) it will burn and creep even deeper, until you can't focus on anything else. And well, he wasn't the type to distract himself through or out of it.
Thankfully, he received a helping hand.
He grew larger since the last time Filip saw Him, but just like the last time - He was surrounded by silence. Silence so deep it seemed to swallow every sound, sucking out vibrations of the world around Him. But not the static of blood pumping through Filip's veins, not the hammering of his adrenaline-flooded heart. Against the deafening silence - his hard swallowing seemed abnormally loud.
Subconsciously he stopped breathing but then shakily let the air out as the radiating with heat obsidian fingers slowly slipped under his shirt. Struggling wasn't an option. Sheer presence of the demon forced submissiveness out of usually loud-mouthed and bossy punk. This time even breathing seemed too much. But just as if the hellish entity was reading his goddamn mind - it slowly grabbed the edge of his shirt and pulled it off to finally put an ease to Filip's anxious mind and gag his mouth shut. Three long claw marks burning down the back of his shoulders and neck meant only one thing - fighting back wasn't an option.
He grasped both of Filip's forearms with hand, the other one tore off his pants and briefs as if these were a thin old rag, in one demanding pull.  Giant fist twisted and forced him to bend. Arching back gave little resistance to the relentless force and tremblingly gave in. Knees shakily dropped to the floor bursting with pain of shallow scratches as the demon pressed him further into obedience. Thick, heavy cock rubbed through his thigh. Slowly, the fabric muffling out tense breathing began to soak all the moisture from his salivating from sudden arousal mouth. Scared and at the same time sure of what will happen next, Filip looked over his shoulder, shirt dropping down to the floor... God, how big it was?!
Cold metal of the bulky piercing dug into both of Filip's buttocks as the dripping cockhead poked against his tight hole, pressed and forced it to let His throbbing girth in. Covered in opalescent precum it impaled him, inch by inch, slowly letting his insides soak in devil juice. Just a bit over a halfway in and His dick already poked through the skin of Filip's abdomen forming a visible bump. Little human fleshlight. Moaning through the teeth, arousing this patient beyond belief devil even more.
Hugged by the loosening ring of muscles, His cock plunged in and finally docked inside, balls deep, stretching human's insides to the impossible degree. It fit Him like a tight latex glove. Throbbing in satisfaction He began to slide out, then in again, spreading His slimy precum over Filip's insides with every agonizingly slow movement of the hips.  Salacious groans of quickly building pleasure moved through the air, teasing devilish mind to just go all in, without any restraints.
But quickly, before He lost His mind to pure sexual madness, He pulled Filip's torso up, plugging that moany hole with one finger while the weight of the punk pushed him down against the thick shaft. Every move had to be controlled, otherwise giving in to the demonic hunger would kill this fragile toy of His, and the moaning didn't help Him to stay sane. Adorably small, compared to the ebony rod - Filip's pierced dick sprung up as he tightened his muscles in bliss, trembling, overwhelmed by the feeling of being stuffed full.
Almost unable to breathe his moans filled the air again as the demon retracted His finger, letting him gasp for air, salva dripping down his chin, more with every thrust of His massive cock stuffing stretched, thin insides. One. Forceful. Shove. After. The. Other.
Pleasure flooded him the moment he felt sudden jolts running through the thick shaft inside him, vibrating against the soft spot of his  overstimulated prostate. Pale blue eyes rolled back into his head, flush of red blush spilling from his cheeks all the way down to the neck and chest. He was too tired to move, every muscle trembling in hellishly long orgasm. Whammed hard, black balls and thighs smacking his ass with every hammering push - two strings of milky cum flew up wetting his torso. He let himself be used - pushed down and pulled up by the giant hands until his sloppy hole was filled up, full of cum spilling down his destroyed obedient ass.
Now, while the sounds started to slowly come back to his ringing ears, and reality became less blurry, he realised it will happen again in the future. And to be honest, If getting his itch gone meant to scratch someone else's itch, especially like that, he was more than willing to help.