Outside, one of the guards entered to inspect the commotion. It wasn't unusual to catch the men locked in to indulge themselves, though it was blessedly rare. The guard sighed and entered the dingy chamber with a heavy sigh.
"Alright, alright. Knock it off..." He began, only to fall sickly quiet.
Inside was a carnival of delight, a new hobgoblin who resembled the human Grant, who they had kept locked in there, pressed up against the bars and passionately thrusting into the bandit they'd locked up. Between the bars Grant thrusted into the bandit, his cock peaking between the metal bars and making a home inside the bandit. The bandit groaned, his heavy form shuddering as it became refined, every muscle alive, solid and real. Dirty blonde hair became pitch black, dark and to the Gaurd's surprise, sexy. Grinning with new sharp teeth, as his skin reddened until it was bright red. He let out another cry as he emptied himself and coated his cell floor with spunk.
The two hobgoblins parted, grinning and groaning in the afterglow. The guardsman was stunned, the horror was plainly panted on his face. The air began to cloud with the musk of seed and male musk. For reasons unknown to the Guardsman, he felt a tingle wash over himself. His armour felt too heavy, too unpleasant. His heart was racing as he slowly undressed and relived himself of his shirt, boots and armour. The Guard blushed, looking at the stain sticking from out his tented undergarments. When did this happen? Why did he feel this way.
His eyes met with the three hobgoblins, all yellow eyes on him.
"Come brother," said the largest of them all. "Give in, try it why wont you?"
Running his cock though his pants, the Guard was too weak to deny the opportunity. He tore away at his pants and enjoyed himself. Another thrust here, and some new hair there. A groan followed by new muscle. The pleasure was too great, too good, that the Guard collapsed onto all fours like the animal he wanted to be and snarled. His chest became like a pelt, his legs itching as the body hair increased all over. Every inch became hirsute, and in the next stage of the transmutation, larger, more square and expansive.
The guard who had a modest training grew in height too - snapping and contorting, the sweaty man expanded until he was 8ft tall and built like a wall. Even the largest hobgoblin was smaller than this new goliath. Now the pleasure was all to swell, to good to be true, as his human-coloured skin boiled as it became a wonderful dark shade of red. SPLASH, was the sound as he emptied himself, wave after wave.
Exhausted, he crawled to his feet. Looking down at his new form, what should have been horror at an alien form, was delight. Collecting the keys to the sells the hobgoblin freed his brothers and embraced them.
The town was surely theirs...