Originally posted this story on Archive of Our Own, but I thought it could fit on here too.

The story will have a main story line about Ben when he is 16 years old, starting with the next chapters and in between all stories about his time imprisoned as Vilgax's slave. I hope some of you can enjoy what my evil sadistic mind can conjure up! ^_^

The sound of the Omnitrix timing out was a horrifying one. The young brunette went from Four Arms back to being just 10 year old human Ben, and his green eyes widened in terror. Now was likely the worst timing ever for the watch to turn him back.

"Ben!"

The young boy barely had the time to hear his cousin scream his name in horror before the blow hit him in the back of his head. Black spots danced in his vision, and he turned to face his enemy. His knees buckled with the movement, and Ben dropped to his knees, staring up blankly at a grinning Vilgax. A foot connected with his face, making him slam into the cold hard ground before he was kicked again, in the stomach this time.

"Get your hands off my grandson!" Max yelled in fury.

The old Plumber tried to reach the two battling men, or battling alien and child in possession of an alien weapon, but was soon stopped by Vilgax's robots. The towering, intimidating alien only grinned wider as Max and Gwen were pushed back by the overwhelming force of his troops. They would not get in the way of his plans this time.

As he was distracted, Ben started getting up again and reached for his wrist to reactivate the Omnitrix. However, before he could, Vilgax reacted by grabbing his arm and drawing his blade.

"Now, now," he tutted.
"We can't have any of that."

A searing pain went through Ben, starting just underneath his left elbow and moving through his bones and nerves until his entire body was filled by it. The black spots in his vision grew and consumed everything in his sight. His breathing stopped entirely and a nauseating feeling, as if he was about to throw up, flooded over him. Vilgax gave an amused chuckle at the sight.

"It's time you pay for your insolence, Ben Tennyson," he said.

The words barely even registered anymore as the boy blacked out from the intense pain. Before Vilgax even closed his mouth again, Ben had gone completely limp in his hold. Snorting in amusement, he grabbed the small body by the waist and slung it over his shoulder, easily carrying him away to his ship. Yes, the boy would definitely pay.

. . .

Ben stirred as the throbbing feeling in his left arm became too much. He shifted lightly, barely registering the clanking of chains as he did so and opened his eyes slowly. Still, the world around him stayed completely dark and Ben frowned in confusion. He shifted again, trying to rub his eyes with his hands, but some unknown force stopped him and held both arms above his head.

"What?"

It was a soft mutter, so soft, Ben barely even heard himself. His voice was slightly cracking, but he ignored it to focus a bit more on his surroundings. He was lying on his side he now noticed, on some soft surface he was pretty sure was a bed. The cool air against his skin told him there were no sheets, nor did he have any clothes on him. His right hand tingled as it had fallen asleep a while ago from being chained above his head on the bedpost, but it was his left hand he worried about the most.

He remembered the intense pain he had felt their earlier, back when Vilgax defeated him, but now, he didn't feel anything at all. There was only the painful throbbing at his elbow and upper arm and the strange sensation was scary. What did Vilgax do exactly?

His numb right hand slowly followed the bumps and ridges of the chain towards his other arm, until he reached his elbow. The movement was slowly returning feeling to his hand, but that only heightened his anxiety. He moved down again, his breath speeding up and then stopping completely as he reached the abrupt ending of his limb. Instead of his lower arm and hand, he only felt a cold, metal plate to which the chain was attached.

Ben gave a sob in horror and pulled his arms closer to him, only to be met with the chain's resistance. It didn't stop him from trying again, however, and soon enough, he was pulling and struggling with a vigor. His eyes grew wide and teary behind his blindfold.

He tensed as he heard heavy footsteps approaching and curled into himself. With as much willpower as he could muster, Ben silenced his sobbing and listened tensely as the door of the room he's being kept in opened and the footsteps made their way over to him. A deep chuckle had him frown angrily and he started pulling at his bonds with new intensions.

"Vilgax!" he growled.

Ben jolted as one clawed finger traced the skin of his back, traveling all the way up to between his shoulder blades and back down. The feather light touch had the boy shivering slightly, the hairs of his arms – or what's left of it – and in the back of his neck rose up at the feeling.

"Good," Vilgax muttered, too close to Ben's ear that it's uncomfortable to the boy.
"I was worried the shock might have been too much for you to handle all at once."

"D-don't touch me!" Ben yelled in a panic as he felt that finger moving over to his thigh.

Vilgax ignored him and continued petting his upper leg like it's the most normal thing in the world. It was all Ben could do not to cry in fear and humiliation as he bit his tongue hard.

"I want you to feel, hear, see, and remember everything I do to you," Vilgax said, his hot breath ticking Ben's ear and making the boy tremble.

The hand moved to the back of his leg, starting out at the hollow of his knee, and moving up higher until he was almost touching his ass. This was where it became too much to Ben and he turned on his back, swinging his leg towards where he believed Vilgax was standing in an attempt to kick him. His foot was easily caught and Ben groaned in pain as the man pushed his knee against his chest, folding him nearly in half.

"What the hell are you doing?!" he yelled frantically.

He started struggling again and the sound of clanging chains drowned out Vilgax's amused laughter. A claw started prodding at Ben's back entrance, and the boy stilled his struggles, mouth open in pure shock as he turned his head towards where he knew the alien was situated.

"W-what?" he mumbled in confusion.

The expression on his face, even though half of it was obscured by the large black cloth around his eyes, was very invigorating to the alien warlord. Ben was only 10 years old. He had no way of understanding what Vilgax was doing to him. His expression soon screwed up in discomfort and disgust as the first finger pushed inside of him.

"That's disgusting!" he yelled.
"Do you know what that's used for? Don't aliens poop or something?"

"Of course we do," Vilgax scoffed.
"But I also know different uses for this."

To put more meaning behind his words, he curled his finger and Ben jolted. A rosy tint reached his cheeks and his mouth fell open. Vilgax didn't know if it was from pain or the first sparks of pleasure that brought out this reaction, nor did he really care. Either way, it would be incredibly humiliating for the boy. Vilgax grinned to himself as he thought how Ben would beg for death before he was done with him.

A second finger joined the first, making Ben moan in pain. He started struggling again in an attempt to get away from the warlord's hands, but Vilgax only put more of his weight on the boy's bent leg and pushed his fingers in deeper.

"Ah!"

Ben's entire body started trembling as Vilgax hit something inside of him and as the alien continued stroking the bundle of nerves, the boy's penis gradually rose to attention. The pink on Ben's face turned to bright red, and he tensed. It seemed that he finally had caught up with what was happening. His struggles ceased again and instead, he tried to close his legs. This too was easily prevented by Vilgax. There was no way he would let Ben escape his grip. A few more well aimed jabs at the boy's prostate, and he pulled his fingers out.

"Enjoying yourself, Tennyson?" he asked tauntingly, gently stroking the boys erect penis up and down a few times.

Ben could only gasp in reply. Soon enough, Vilgax left the bed and walked over to the nightstand, pulling a few newly acquired items from the drawer. The first one was a black collar with spikes on, the kind used for dogs to be more precise. The second object was a remote controlled small vibrator. Both were little souvenirs he took with him from Earth.

"I did some digging in human torture," Vilgax started as he assembled the items and brought them over to Ben.
"And I found your species is so disgustingly fragile. It's humiliating to think you gave me so much trouble before."

"Glad to help, Squidface," Ben sneered in his usual cocky tone, be it a bit breathless.

Vilgax huffed in annoyance and roughly turned Ben on his stomach. The boy yelped in shock before stilling completely. Vilgax took the opportunity to take the collar and quickly fastened it around Ben's neck. A gasp and tugging at the chains was the only reaction he got for that. The collar was tight around Ben's throat but not to the point where it constricted his breathing, just enough to make sure Ben wouldn't forget it was there.

Next is the small bullet vibrator. Vilgax took it between his fingers and rubbed it against Ben's ass, making the boy tense up again. Pushing it inside of him was rewarded with a groan and some renewed struggling, but it barely even slowed the alien down. Vilgax made sure to angle the little toy just right so it sat snuggly against the bundle of nerves inside Ben's rectum. He turned the boy again to lie on his back and removed the blindfold.

Puffy green eyes glared at him, but Vilgax couldn't find himself impressed as he noticed the wetness on his burning red cheeks. It had always been hard to see Ben as a child whenever he was handling the Omnitrix and fighting Vilgax, but seeing him like this made the warlord think he really did look his age. It only made him smirk more. That's good, he thought, he liked it better when Ben was only a kid. The grin on his face widened and he held the remote up for Ben to see.

"Guess what's this is for," he said.

Ben eyed it suspiciously, then followed the cord to where it disappeared between his legs. His eyes widened in fear and they quickly snapped back up to the alien's face, searching for something in those red eyes of his captor. Whatever he was looking for, it didn't seem like he found it, as he sighed in defeat and looked away.

"Don't know," he muttered.
"But I bet it's gonna be painful, right?"

Vilgax didn't reply. Instead, he turned the vibrator on, immediately putting it on the highest setting. Ben screamed and his body rose from the bed at the force of the vibrations. Tears sprung in his eyes again as he came from just that. Vilgax returned the settings to a soft buzzing, but didn't turn the toy off entirely.

The boy whined at the feeling and slowly, his penis started to rise again. Vilgax chuckled in amusement at the sight. With a sigh, a somewhat regretful one at that, the alien warlord leaned over Ben and replaced the blindfold.

"I'll come see how you're doing in a few hours," he whispered in the boy's ear before stepping back.

"N-no, please!" Ben gasped.
"T-take it o-out. I-I can't…"

Vilgax didn't listen. Instead, he turned the vibrator to the medium setting and taped the remote to Ben's thigh. That way, Ben wouldn't be able to stop the vibrator, but he wouldn't be able to come a second time either thanks to the too low setting. With a victorious grin on his black lips, Vilgax left the room.