Silver adored his master.
When his master came into his cell, Silver crawled on all four and swallowed his organ. His owner pulled his hair so he could thrust against Silver's throat. Silver choked around his master's organ, but it felt wonderful to please his master. When the master came, he generously let Silver drink every drop of it before pulling him off.
"So obedient. You really love everything I do to you, don't you?" the master asked while caressing his hair.
"Yes, Master," Of course Silver loved everything the master did to him. This was the indisputable fact about his life. Silver was confused why the master repeatedly asked that.
Then the master pinched his nipple hard. Silver wouldn't like this from anybody else, but his master's touch always aroused him.
"They'll look good with rings," His master said. "Are you ready?" Silver nodded. No matter what he might feel about piercing in general, he would get to love it. It was convenient as the master kept him naked, except for the time he put lingerie or cat ears on him.
The master took out a needle and pressed the tip against his nipple. "Breathe deeply and stay still"
The pain was scorching hot when the master pierced his nipples and put the jewelry, but it quickly grew into pleasure and arousal. He was always hard for his master.
The master patted his cock with his free hand. "You'll enjoy it more the next day."
Silver woke up with cold sweat and painful nipples. What did that bastard do to me this time?
He looked down and saw his nipples rings. Memory of what had happened rushed to him. He cringed as he saw himself serving his captor Aris like an obedient dog, holding perfectly still and letting Aris mark him as his slave. It wasn't the worst thing he woke up from his mind control, but it felt more permanent.
Damned Aris the mage, he thought. He lost track of the time of his imprisonment. They threw him into the cell naked and bare feet, and put him under Aris' (non-existent) mercy.
Aris was reputed to be a powerful mind mage, and now Silver was painfully aware why the price of his head was so high. He put Silver in mind control half the time as a mindless sex slave who only wanted to please him, so Silver would wake up to crystal clear memory of his shame thereafter. Sometimes Aris let him put on lingerie for bed slaves and dragged him outside for a walk.. Sometimes he used Silver as an enthusiastic party favour who ended up drenched in come. All of his escape plans ended up in vain because he would eagerly blather them out to Aris and gleefully took punishment from his fucking machine and electric shock.
All while loving every moment of that because Aris conditioned him into loving everything he did to him.
His team most likely gave up on him. What use was a brainwashed warrior turned sex slave?
When he was weaker, he wished he would never wake up.