The human looks ahead to see a figure approaching. 18 feet tall, skin a dark brown and hair a bright orange. All but his head covered in pitch black plate, brows thick and hair cut short. Chin covered in a long-braided beard, and mouth resting in a natural scowl. Body broad and ready for combat. The fire giant spotting the traveller, face twisting into a smile.
"Ah, good. We were just needing to capture some fresh recruits."
The human gulps, running away from the giant but only able to get a few steps in. Sudden pain hitting the man as his chest is squeezed as he is lifted off the ground. Held in the giant's iron grip, unable to move even an inch as he is brought close to the creature's face. Hot breaths reaching his skin, as the gargantuan monster lets out a rumbling chuckle.
"You'll be worked into shape. What's your name, boy?"
The adventurer is too scared to refuse this request. Stammering out.
"M-Mark"
"Mark! Bah, that will change. I am Grisk'Nulgan, but you will call me master."
Grisk looks to Mark expectantly, the human nodding rapidly as he replies.
"Yes M-Master!"
"Good boy. Now rest, learn, obey."
A finger is bought to Mark's head, a soft red glow emitted from the tip as the human starts to feel tired. Vision blurry as all he can see is a mixture of colours. Losing consciousness and drifting off to sleep, waking up hours later. Seeing himself, bound in steel chains. Held far off the ground in a large stone room. Walls a dim grey, adorned with red tapestries displaying humans and giants. In one, a frost giant captures a man and throws him into a hole. The giant shooting his seed into the hole, flooding it as the human becomes a new frost giant. In another, a human grabs onto an earth giant. Brought to the tip of the creature's cock where he is shot back to the ground in a flood of cum. Planted into the earth and growing into a new earth giant. The last tapestry shows a human and a fire giant, yet as Mark looks at it, he hears a throat being cleared.
Mark looks straight ahead, seeing Grisk'Nulgan. The giant completely naked. Thick hair across his pecs and leading down to his crotch, bright orange and almost fur like due to sheer quantity. The back of his arms having the same coverings, as does the front of his legs. Standing out from his darker skin, with his body having a natural fitness to it. Firmness in arms and his wide chest, trained from combat.
"Mark."
He commands the human's attention, the adventurer looking to him, unsure. Their eyes locking, Mark staring into the blood red irises of the giant as his mind starts to melt. Something's wrong but... it feels so good. Why resist? He takes a deep breath, then smiles and replies.
"Yes Master? How may I help?"
The giant grinning, pleased with the obedience as a finger pats the man's head.
"What do you desire?"
Mark thinks. He left home for adventure. To make a name for himself and train as a person. To be a hero and do good to the world. Confident in his answer, he replies.
"To be a famous adventurer and hero."
Though his heart sinks as he hears the response. Grisk shaking his head, glaring at Mark as he stares back. Focusing once more on the giants' eyes as he listens, taking in every word and allowing it to redefine who he is.
"No, Mark. You desire to serve us fire giants. To craft my armour, to be a part of our kingdom. That is what you desire."
Mark absorbs every word and command. A part of him trying to resist, but that is pushed away by the greater desire to serve. Images filling his mind. Of long days at the forge, working metal with hammer. Reshaping black steel into perfectly fitted plating. Having already groped and felt each inch of the giant to accurately get the measurements needed. Cock hard at just the thought of bringing a hand to the well-muscled leg of his master or feeling the burly chest of the man he so willingly serves.
A comfortable warmth fills the adventurer, the feeling of a hard day at the forge. Of muscles working to craft his master's gear. Of relaxing afterwards at the pub, drinking with human and giant alike. Sometimes even retreating to their rooms after for some more intimate release. The routine repeating in his mind as that warmth becomes an intense burning. Seeing that with each day of hard work at the forge, his spindly arms become harder with muscle. Biceps firm, taut as he works hammer into steel. With each night spent at the pubs, his stomach extends forward. Barrel like due to the constant ale and hearty meals. Gut pressed forth, but just as hard as his arms. Alongside this all, his moments of rest invoke their own changes. Skin turning darker and hair brighter for each time he sleeps with the giants. Drinking down their spunk just like the ale at the pub, and seeing it alter him to become more like those he serves. Mark's body aging as he serves without question. Hair growing long, beard turning into a mane of hairs. The new blacksmith going from early 20s to late 20s, mastering his craft in those years.
The routine is set in his mind, Mark not even questioning his new self. Just looking at his body with pride. The dark skin and bright orange hair like the giants. The rotund yet mighty figure to suit the blacksmith he is. Feeling a tingling in his throat as even his voice was not spared the change. Deeper and more guttural, blunt and to the point to represent what he now is. The man looking to his master with pride, as the giant asks.
"What are you, Mark?"
To which Mark eagerly replies.
"Yer' Blacksmith, Master!"
Grisk'Nulgan grins, taking in his creation as he frees Mark from the chains and brings him to the ground. Walking out of the room with Mark following, opening a stone door to show the city of the giants. An underground complex of steel and stone, buildings reaching up to the roof and windows peering into the well-lit forges, bedrooms, and pubs. Giants and humans walking across the roads, the humans all reminiscent of the giants with dark skin and bright orange hair. A rare few even closer to the giants in appearance, with fur like hair on their bodies and at least ten feet tall.
"Mark, take the rest of the day off. Tomorrow, I need you to finish my armour. Understood?"
"Course, Master!"