In the dark

The darkness in the cell was so compact that he couldn't see a thing. Even if there had been light he wouldn't be able to see much. His glasses had been crushed and thrown away.

How long had he been down here? Days? Weeks? He really couldn't tell. He wasn't even sure what he'd done wrong in order to get this severely punished. His entire body ached and wished for relief. He felt so cold but he couldn't curl up and get a little warmer since he was chained to the wall which forced him to stand/hang upright. His wrists hurt. The chain had chafed and caused them to bleed. The few pieces of cloth that still remained on his body were drenched in sweat and blood. Some of it had gotten stuck in the wounds on his back which he recieved after being whipped several times. Drifting in and out of consciousness, he was sure he'd gotten a fever and that the wounds were about to become infected.
’No good being a medical ninja when you can't do squat to heal yourself’, he thought to himself.

The sound of footsteps coming closer suddenly reached his ears. Well aware of who it was, he leaned his head against the wall and swallowed hard. The thought of what to come still terrified him after all this time. For once he was glad that he faced the wall so that he didn't have to see his master's face. It was bad enough to hear the smirk and excitement in master's voice while the punishment was carried out. That twisted bastard enjoyed putting others through pain and misery way too much.

As the footsteps stopped and the door to the cell was opened, he could taste the fear that practically paralysed him. The darkness faded slightly when someone entered and walked towards him. Terrified he closed his eyes and bit his tongue. The older man pressed himself against the younger man's back, placed his hands on the young man's shoulders and whispered;
”Hello Kabuto. Did you miss me?”

Unable to speak, Kabuto bit his tongue even harder, hung his head and felt a tear slide down his chin.
’This is not happening. This is not happening!’ he tried to convince himself in vain. He was violently brought back to reality by a damp tongue licking up his tear while two fingers were being forced into his rear entrance. With a gasp of surprise and pain his eyes flung open.
”My precious Kabuto”, his master purred in a low voice, ”Who do you live to serve?”
He tried to wet his lips but his mouth was dry.
”Y... y...yo... you, O...orichi..m...maru-s...sama..”, he managed to stutter.
”Good boy”, his master whispered as the fingers were removed only to be replaced by a hard member.

Sharp pain bolted through Kabuto's body as he could feel the flesh be torn apart. No matter how many times he had to live this through the pain never diminished. His master seemed to enjoy penetrating the fragile boy's tight and dry passage, the feeling of how the flesh gave way and the blood working as a lubricant since it only took him a few thrust to reach orgasm. Orochimaru came without a sound and spilled his seed deep inside his servant. Still buried inside the warmth of Kabuto, he leaned forward and kissed the right side of his servant's neck. Then he nibbled on the earlobe, grabbed the young man by the hair and pulled the silverhair's head back.
”Now, pet. Do you really not know how you failed me?”
Eyes filled with tears and throat clogged, Kabuto couldn't answer. He just shook his head.
’I don't know. I really don't know what I did wrong’, he thought to himself as a tear fell to the floor.

As his master spoke, he felt like he was thrown down into the deepest sea of despair and the realization struck him. He never should've turned on Konoha and followed the Sannin. He would've been much better off dead.
Hearing his master leave, he could still hear the words echoing inside his head...

”You never failed me. I simply prefere you like this, chained to the wall. My whore.”