I asked Saltslimes for his permission. So, I took his story and moved it in with my other stories in fanfiction. Everyone can read there. Just want to let you know that I do not steal his story. I know everyone love that story. It is came from the "Archive of our own" site, the story is belong to Saltslimes.

Chapter one

Okay, so, breaking into the underground Cadmus lab to investigate? Not all that hard. Fighting off the genomorphs, which were a weird surprise, not too hard either. Breaking into a secret room to find out what project Kr was wasn't even that bad. But when Robin, Kid Flash and Aqualad finally got a look at what Cadmus was hiding… they were surprised, to say the least.

"You're gonna wanna see this," Kid flash called.

"Is he who I think he is?" Kaldur asked, staring down at the glass cradle. Kid flash pulled up a file.

"Guys, listen to this, they engineered him from Superman's DNA. Project Kr, like kryptonite!" Kid flash exclaimed.

"Okay but… he's so little." Robin put in.

"He must be only a year old. Whoa, or days old, according to the file. They're making him grow at an advanced rate!" Kid flash marveled, pressing a hand against the glass cradle where the tiny sleeping form of what looked so uncomfortably and hilariously like a baby superman was encased.

"So project Kr created him without superman knowing."

"And they're planning to turn him into a weapon." Kid flash said, skimming the file quickly.

"But guys, he's sort of… superman's son." Robin pointed out.

"And he is very cute," Aqualad noted. Wally and Dick took a moment to frown at him, before admitting, yeah, in his little white onsie with the superman "s", he was not just cute, he was adorable. There was a genomorph nested by either side of his cradle though, and he laid totally still, more like a doll than a baby.

"They must be mind controlling him right now."

"What do we do?"

And that was when the little superbaby woke up, and the glass got broken real fast.

Sitting up in a now smashed cradle of glass, the little superboy blinked up at them, his short dark hair in damp messy whorls, and opened his mouth.

"Wow, I hope he doesn't have freezing breath," Wally said quietly. The superbaby burst into tears. He didn't, as it turned out, have freezing breath, but he did have quite the pair of lungs on him.

"What should we do?" Aqualad asked uncertainly, looking back at Kf and Robin. Kid flash shrugged, pushing his finger into his ears. The superbaby wailed louder.

"Oh my god, we're going to go deaf," Kid flash moaned. Robin gritted his teeth and picked up the baby, who was the size of at least a six month old, even if he was days old instead. The superbaby squirmed and cried in Robin's arms, and Robin slid him onto his hip and bounced him a little. The baby hiccupped, and sniffled, but he stopped screaming.

"Holy crap, how did you do that?"

"Who knows. We should get out of here before someone—" Robin didn't get to finish his sentence as the door burst open and a scientist guy with a pile of genomorph goons filed into the room.

"Hand over the weapon!" the man yelled, his hands stuffed in his white coat pockets and his brow furrowed.

"Is he talking about Supey?" Wally asked.

"I believe he is," Kaldur said.

"Then are you guys thinking what I'm thinking?" Robin said with a crooked grin, setting the superbaby down in the cradle.

"Yeah, I think we are," Aqualad said.

In the end, there was no way they would have gotten out of the building without Superboy's help. He couldn't talk, but he pointed them in the right direction until Dubbilex revealed himself. And even for a baby, he was pretty strong. He took out the last column and had to be scooped up by Aqualad when the building came crashing down on them. They crawled out of the rubble bruised and triumphant, and with the superbaby sniffling in Robin's arms.

"Dude, we did it!" KF yelled, and then winced. Robin cackled. They looked up into the night sky and saw—"Oh crap is that superman?" Kid Flash exclaimed.

"More like the entire Justice League," Aqualad corrected.

Superman was the first to touch down, and Superboy stared up at him like he was seeing the sun, not the moon, for the first time. Most prominent behind him was batman though, and he looked ticked.

"Is that what I think it is?" he intoned. The superbaby crinkled his brow and started wailing.

"Hey, he doesn't like being called an it," Wally piped up.

"He's Superman's clone," Aqualad put in. Superman's eyes widened. Robin held up the screaming baby, but Superman made no move to take him. League discussion ensued, and they ended with Superman floating over to announce, while refusing to look directly at the superbaby who was crying at top pitch and giving Robin a headache, that it wasn't his area, but the other leaguers would figure it out. Then he told them that he needed to go make sure the Cadmus monster was squared away.

"Results aside," Batman said loudly, trying to drown out Superboy's wails. "You will not be doing this again."

"I'm sorry, but we will," Aqualad announced. "We did good work here tonight. The work you trained us to do..."

Their mentors didn't look entirely convinced after their little speech, but Superboy's wails were threatening to deafen them all.

"Oh man. That kid has a set of lungs on him or what?" Flash moaned. Batman made a kind of hissing noise in his teeth, and then stepped forward to take the baby from Robin's sagging arms. At first he let out an even louder wail, but as Batman rocked him back and forth, his eyes fluttered and closed, and he fell asleep.

"Oh my god, did you actually have superpowers all along and just pretend not to?" Flash asked. Batman looked up at him, his cowl's eyes narrowed. "Uh, never mind. Come on, KF, Let's get going."

Aqualad left with Aquaman, and Bruce turned to Dick with a frown.

"I know, hacking the systems, taking strange babies, blah blah blah," Dick said.

"Actually I was going to say I bet we could convince Alfred we deserve cocoa, but now I'm not sure you do."

"Hey! Batman! I deserve it! Hacking the systems! Rescuing babies, come on, just stay whelmed," Dick cried, chasing after Bruce. By the time they arrived at the batcave he had fallen asleep in the batmobile with the superbaby on his lap, but Bruce got Alfred to make him cocoa anyways. In the morning, he was going to talk to Clark about responsibility. For now, he needed to figure out where in the manor he was going to keep a super strong baby, and how.

"Oh master Bruce. Not that I have ever been unhappy with your decision to adopt Master Dick, but now a baby? His adorableness is no excuse, I am afraid. We do not even have any diapers on hand."

Bruce sighed, sliding back the cowl and lifting up the superbaby carefully, so as not to wake up him or Dick. "I know. Can you make some cocoa? We should talk about it."