Commission (Tiri.)

Commission for : https://www.pixiv.net/en/users/3397642 Tiri was muscular dark skin shark boy, good looking and well hung. His baby makers were usually in their sac, but today Tiri wanted to tan. He always had a exhibitionist fantasy but he did not dare to do it with people watching him and so he decided that he would only do it in the forest. The big man slipped off his underwear letting his manhood flop out with the breeze. He shook his hips back and forth swinging the hefty man parts, having his thick veiny penis slapping his chiseled abs, flexing and posing his muscular body. After a few slaps, he caught his junk in his hands, stretching his balls, giving his proud baby makers a firm squeeze. He enjoyed the light pain. His flaccid cock quickly firm up, with the other hand stroking his shaft and circling his urethra. He grunted and moaned edging himself to his orgasm. Just as he was about to cum he stopped, laid back and enjoyed the sun. He could hear nature all around him, the sun tanning away his manly body. Suddenly he felt a cold sharp sting pierce his leg. It yanked him over. Tiri shocked and confused clawed the earth trying to stop whatever was dragging him. But one after another more harpoons stabbed his perfect body. Tiri could only scream in pain. In that moment he saw it, the horse consumed by parasites. These parasites are envoys of the dark deity and they serve to corrupt life forms. This one found a dead horse and now it has found him. Each harpoon was a tentacle invading his muscles controlling his movements. It hoisted his heavy frame up and positioned him to be fused with the horse. Slowly but surely he was being eaten up alive by the parasite. Halfway in, two tentacles reached out penetrating his urethra and proceeded to stretch his urethra leaving tears in his magnificent penis. Two othe tentacles reached lower penetrating his fleshy testicles deep to their core. Tiri screamed, the sensation of being eaten alive and raped at the same time was both extremely painful but it itched so bad deep in his penis he wanted the monster to continue violating him in his dick. True enough he got his wish a third tentacle pierced his stretched out penis and break off inside his dick, it spread out inside his dick invading the muscle fibers that made out his proud manhood. He could suddenly feel the sensation of the horses cock throbbing. This was not all his stretched out piss slit was to fit a thick tentacle effectively clogging his dick stopping him from ever spilling his seed while pumping mutation fluid into his balls mutating them into parasite semen that will be harvested when needed. Tiri's orgasms would only serve to torture his own balls with the backflow burning them.Finally its time to take full mental control of the struggling man. He would be getting his brain fucked through his ear rendering poor muscle alpha male Tiri a brain dead muscle corpse, mounted on a horse forced to fuck until he rots and his dick falls off.