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HP x Justice League Crossover Chapter 1
🕑 Added 2026-01-01 01:23:24 +0000 UTCHarry Potter x DC/Justice League Crossover
His trunk thumped behind him as he walked through muggle suburbia in the dead of night, his destination unknown as he only had the streetlights for guidance.
There was no doubt in his mind that he would be expelled from Hogwarts. He had blown up his aunt and sent her flying over Surrey, broken the restriction for Underage Wizardry so badly in the process that he might even be arrested by the Ministry.
Harry only clutched his exposed wand tighter, knowing that he was nothing without the use of his magic. But at the same time he was truly alone, unable to return to his aunt and uncle’s home, while also unable to stay with the Weasleys while they were off in Egypt on vacation.
His fingernails began to dig into his palm, drawing blood, and it was only then that he finally noticed the pain and put his wand away. Muggles weren’t supposed to know about magic, and he didn’t want anyone to see him with a wand, nor for the Ministry to use it against him.
“You’ve made quite the mess, you know.”
Harry nearly jumped out of in his own skin, hearing a sudden, feminine voice come from behind him. He spun around, thinking the girl who spoke was behind him, only to not see her. He turned his head several more times, and still didn’t see her, until he finally happened to look up.
“Woah.”
Before him was someone he had only seen on television and on the covers of newspapers and magazines. Tight blue spandex that hugged her athletic upper half, with a red skirt that went down to her mid thighs, exposing long spotless legs that led down to tall red boots. Her face was beautiful, aristocratic, and belonged to someone way out of his league, complete with blue eyes framed by long blonde hair.
“I just so happened to be flying by when I spotted a woman floating around like a balloon.” Supergirl, as the Americans called her, floated down and gracefully landed several feet in front of him. She pushed a stray hair behind her ear, before putting her hands on her hips and looking at him with a scrutinizing gaze. “After bringing her back down to earth, her family was quick to lay the blame at your feet.”
In Harry’s mind, this might be even worse than getting in trouble with the Ministry.
“I-I don’t want any trouble.” He swallowed thickly. “It was an accident. Honest.”
Her eyes narrowed in on him, making him sweat. That was before she took a deep breath, and looked off to the side. “I believe you.”
“You do?”
She nodded. “Your heartbeat didn’t change, so you’re not lying. Your Father also wasn't very grateful for my help… In fact, he was quite nasty. Which makes me think that there’s more to this situation.”
“They’re my relatives, my aunt and uncle.” He hastily corrected, as the Dursleys had worked hard over the years to make sure he was not associated too much with to them. They had told most of the neighborhood he was their delinquent nephew, and Marge had driven that point home hours earlier. His explanation came spilling out then, the stress of the past day getting to him. “They were insulting my parents. Marge… Vernon’s sister, is especially terrible when she’s here. My parents died to protect me, and yet they lie and say that they were drunks who died in a car crash. After so much of it, I just… She just inflated and I ran.”
“So you didn’t mean it.” He could’ve sworn he saw Supergirl’s eyes flash red for a brief moment before she calmed herself after hearing his explanation. “But how did you even do that?”
“I’m a wizard.” He answered, guessing that the statute of secrecy didn’t apply to superheroes. “I go to a… magical school for most of the year. It’s only in the summers that I have to deal with them.”
“I didn’t know Earth had those.” She sound deeply impressed with him, as the blonde stared at him as if seeing him for the first time. Meanwhile Harry felt heat creep up his cheeks, unused to having the attention of such a beautiful girl. “Krypton had some wizards, magi, but I’ve yet to meet any here outside of the League.”
“It’s supposed to be secret, kept hidden from muggles—normal people.”
“It was the same back home, too.” He guessed she was referring to her home planet. “Where will you go now?”
“I don’t know where I’m supposed to go.” He felt tired, weak. The Dursleys were his only family, and he couldn’t stay with the Weasleys when they were vacationing on another continent. “I can’t go back, and I don’t have anywhere—”
“You can stay with me.” She interrupted, and suddenly he found his hand being held by her own. She had moved close to him in the blink of an eye, the skin of her hand feeling softer than he could’ve imagined, while her blue eyes stared back at him.
He wanted to protest immediately, decline her offer out of politeness, but something in her own gaze stopped him. She had look of someone who only wanted to help, a look so earnest that it was downright mesmerizing.
“Okay.”
/////
There was a strange, new feeling when it came to staying with the Kent family, one Harry had never quite experienced before. The feeling of sincerity and straightforwardness was something he quickly became accustomed to, and very much liked.
With the Dursleys, there was always an underlying current of tension in the household, whether due to his own magical abilities, or Aunt Petunia’s constant need to have a respectable reputation amongst the neighbors. It made everything they did seem fake, motivated by their need to impress other people.
He strangely found Hogwarts to have some of these things too. Whether it be the ridiculous defense Professors he had the last two years, or even Snape’s petty behavior. They were things everyone knew was fake and wrong, yet no one ever did anything about it.
It was different with Kara’s adoptive family. They had nothing to hide from Harry, and couldn’t care less about what other people thought about them. Everything was as straightforward and as honest as possible, from what the day’s meals would be to what work needed to be done on the farm. It was almost a breath of fresh air for him, and spending everyday with Kara felt more liberating than anything he had experienced up until that point in his life.
“That’s good, Kara.” Mr. Kent, Kara’s adoptive father spoke before turning to him. “You turn, Harry.”
The massive John Deere tractor groaned, lifted off the ground by a blonde teenager with strength she simply shouldn’t possess in such a small frame. His part came next, as he gave his wand the customary swish and flick to levitate the massive road wheel off its mount. They were heavy, weighing several hundred pounds, and he could feel his magic strain at the weight. But he had been training his magic a lot recently, and the only reaction it got out of him was the slight gritting of his teeth.
Of course, the Kent family was surprised when Kara showed up with a wizard at their door, but were quick to offer him a place to stay for the summer. And if things couldn’t get any better, since they lived in America, Harry was free to use his wand without the British Ministry ever finding out.
“Just there is good.” Jonathan said, seemingly not impressed in the least by his display of magic combined with Kara’s strength. “Go ahead and do your thing, son.”
Harry nodded, sitting the object on the ground before turning to a pair of new wheels nearby. His wand was already moving, and with a nonverbal cast of the levitation charm, one of them lifted off the ground. The wheel was lined up with the axel, and he slowly levitated it so it was attached and ready to be bolted in.
“Just like that, perfect.” Jonathan smiled, walking over to finish attaching the spare wheel to his aging tractor. “You two have no idea how long it took me to do this before Clark started helping. It took hours!”
Kara laughed, and Harry couldn’t help but smile. He had learned that Jonathan Kent rarely ever complained, meaning that he and Kara really had just helped him out of hours of work.
“Do you really have to change them that often?” Kara asked, her brows furrowing.
“No.” Jonathan groaned. “If you’re lucky they last a decade, maybe more. But accidents happen, whether that be an unlucky rock, or too much mud one day.”
“I see.” Kara said, before turning to him. “Harry, do you think you could fix the old ones?”
Harry blinked, before turning to the old set of tires with his wand. “Reparo.”
The large tire shifted and groaned, the dents in the rim shifting back into place with an ugly screech while the damaged rubber molded into its old shape. It wasn’t good as new, but Harry figured Mr. Kent could at least use it as a spare.
Kara examined it closely. “They almost look good as new!”
“Heh, Good job son!” Jonathan remarked from the side.
“Thanks.” He smiled. “Although I don’t know if they’re the same quality as newer ones.”
“Eh, better than having to throw them away.” Mr. Kent shrugged. “Almost makes me regret buying a new pair.”
“Better safe than sorry, honey.” Martha Kent said suddenly, entering the barn where they were working. “I’m here to remind you of the Cook family’s get-together.”
“That’s tonight?” Jonathan rubbed his forehead.
“This afternoon, actually.”
“Guess we’ll call it here for the day.” Kara’s adoptive father turned to them. “Are the two of you coming along?”
The blonde moved up to his side, getting suspiciously close. “We were thinking we’d stay here, let you old timers see each other for once.”
Mr. Kent muttered something about ‘brats’ under his breath, while Martha moved to her husband’s side. “The Cook family is quite elderly, dear, it wouldn’t be fair to make them come along. Now, let’s get inside and get going before we’re late.”
The two left him and Kara alone in the barn, as well as alone together for the rest of the day. In a way, it was good to have a break from working around the farm. Just that day alone, he had fed the pigs, helped move the cows to a different pasture with Kara’s help, before finally using his magic to work on the tractor.
It was so much different from Privet Drive, to the point his skin had gotten a tan in the Kansas sun while his frame became slightly muscular from the manual labor. Harry couldn’t help but laugh then.
Kara gave him a look as if he might’ve lost his mind. “What is it?”
“Sorry, just not used to this, you know?” He shrugged. “Kind weird that I get to use my magic outside of school, and combined with your own powers and how your family reacts… Just different.”
“I get it.” Kara’s smile was a tad bitter. “I didn’t use to have powers—on Krypton, I mean. I was a normal person like the people here, only that we normally lived a bit longer.”
“And now you’re here, on a different planet, using superpowers to help out on a farm that your adoptive family owns?” Harry couldn’t help but finish, eliciting a nod from her. Sometimes he had to remind himself that Kara had only been on Earth for a bit over a year, and that a lot of this was still new to her.
In a way, it was somewhat similar to his own story. Learning he was a wizard two years ago when he was fifteen, and going on to learn the truth about his parents deaths, along with the Wizarding World as a whole. He had practically been dragged out of his cupboard and into a new life, although not as terribly as Kara had experienced with the destruction of her home planet.
He touched her shoulder comfortingly. “You can talk about it, if you want.”
“Thanks.” Her smile was small. “But I prefer to keep busy instead. Helps to keep my mind off things.”
Thunder rumbled in the distance then, the sky darkening as to foretell the coming of rain. “Well, want to go inside?”
She nodded, as they went inside the Kent home and upstairs to where their bedrooms were located. He ended up following her, sitting in a comfortable chair in Kara’s bedroom while she laid flat out on the bed, a magazine open propped open against her sizable chest while he read the day’s newspaper.
Her bedroom was exactly what he expected from an American teenage girl, bright and colorful, with blue walls and pink cushions. It had been furnished by the Kents, along with Superman, who helped decorate it at the time. It made the space cozy and comfortable, quite unlike any of the rooms at Privet Drive.
With that said, Harry wasn’t ignorant of the fact that he was home alone with Kara in her private bedroom. In fact, now that he thought about it, she had been around the home a lot more than usual since he arrived, not out and about like he expected a superhero like her to be.
“You’ve been around a lot more than usual.”
“What? Don’t like having me around?” She teased.
“It’s not that, just that I expected you to be gone more with your… superhero duties.” He phrased awkwardly.
Her expression instantly soured, gaining a severe look that he hadn’t seen before.
“I’ve been temporarily removed from League duties.” She tried to speak neutrally, but he caught the bitterness in her tone. “Batman was the one to do it, citing my ‘unnecessary destruction of private property’. It happened right after you got here actually.”
“That sounds… unfair.” He managed.
“You don’t know the half of it.” She nearly growled, flipping over on the bed to face him in a way that made her hair beautifully fall in a different direction. “You know the worst part? It was my cousin who sided with him. Clark. He said that I was too unused to life on Earth, that the collateral damage I caused showed I wasn’t ready to be a Hero, and that I was better off quitting now and spending my time trying to be a normal girl rather than causing trouble.”
He couldn’t help but wince. “That was very harsh.”
Her furious expression softened. “Thanks.”
“I mean it.” He wasn’t simply agreeing with her. “I know what it’s like to have adults ignore you because you’re younger while thinking they know better. It’s happened at school loads of times with me.”
“Still, this isn’t school.” Kara shrugged sourly.
“That means you’re even more in the right.” Her blue eyes widened. “Innocent people get killed by the League’s enemies, meaning it’s even more important that someone stop them.”
“That’s what I said! But they insisted that they have enough superheroes on standby that they don’t need me.”
He could see the hidden urge within her to do something, almost like a force propelling her forward to help. It was the same feeling he had to stop Voldemort from taking the Philosopher’s Stone in his first year, or to save Ginny from the Chamber. Kara obviously felt the same way, that sitting around without using her powers was a waste, and had a deep desire to use them to help people.
“Then be patient, and work to get stronger so they can’t turn down your help.” He said. “I can help you train before I leave for school, but maybe you can find help while I’m gone? I’m sure there’s others in the league you can train with.”
“Still, I’m not sure if that’ll be enough. Maybe I really should give up on this whole thing.” She sighed depressingly, expression downcast.
“Kara.” Her head snapped his direction, as he stared at her with resolute eyes. “You’re an amazing person, and extremely talented, not to mention kind. I don’t know why your cousin and Batman don’t see that, but I know you’ll be able to prove them wrong. If you want to save people, then don’t let them stop you from doing the right thing.”
She smiled in a way that made his heart beat hard, and he couldn’t help but feel the hairs on the back of his neck rise. “You always know what to say, Harry.”
He opened his mouth to respond, and that was when it happened. She pounced forward, pining his body underneath her own as if he weighed like a child. He was on the floor in an instant, her thick thighs at his sides, jean-clad bum raising high in the air and just asking for his hands to grab it. Long, golden blonde hair fell down and framed her blushing face right above his own, right before her plump lips crashed against his own.
It was wet—much wetter than he thought it would be, and not to mention noisy. They were practically ramming their mouths against one another, doing so without finesse, which came from lack of any prior experience.
Still, it made his heart beat even faster as his mind turned to mush. At the same time he was vividly aware of how beautiful this girl was, and how her body was so much better than some chump like him deserved. Even now he could feel the immense weight of her large tits pressed against his chest, along with that amazing ass begging to be grabbed by his greedy paws.
Fuck it. He couldn’t resist his lust any longer, letting his hands rest on her ass as he molded it through her jeans. Kara moaned against his lips, their kiss intensifying.
It was like he was in space then, running out of air as she consumed him. But he could hardly pull away, especially when such a beautiful blonde bombshell was making out with him of all people. For a brief moment, he wondered if Supergirl would asphyxiate him, not knowing he required air unlike her. But that was when she pulled back, giving him a view he would forever remember.
Her cheeks, ears—no, her entire face—was bright red in a ginormous blush. Kara panted for breath, Kryptonian physiology doing nothing against her own pleasure as sweat dripped from her brow. She was clearly just as turned on as him—if not more so—and he wondered if her strength had truly wreaked.
“That was…” He trailed off, not even knowing how to put it into words.
“…Incredible.” She managed to get out, her pupils dilated as she stared down at him. “Your heartbeat… your hairs, sweat, I can sense it all, Harry. It’s all so amazing, the way you make me feel is incredible.”
Enhanced senses. Sometimes he forgot just how superhuman Kara was, able to hear a pin drop from miles away, along with her X-ray vision. His blush only got worse then, imagining just what she was able to perceive when around him. Even now, he was sure she was acutely aware of his stiff manhood stretching out his trousers.
A heat of embarrassment flooded him, but he got no time to express his worries before she was upon him once again. They spent the next couple hours crashing their lips together and being an awkward, giggly mess, before the Kents finally returned and they retreated to their separate rooms for the night. But even then, Harry could only wonder if Kara was watching him through the walls.
A/N:
I believe that I did promise a HP/DC crossover story at some point, so here is the start of it.
Sadly, I can’t promise timely updates with this one, and I’m still unsure about this chapter as a whole and might rewrite it in the future. Also, I’m not an expert on DC, having watched a couple of the Justice League shows and Young Justice, along with a fair amount of the movies, so don’t expect anything too in-depth.
And obviously, I've yet to decide on a name for this fic yet. haha
Planned Pairings(not final at all): Harry x Supergirl / Kara Zor-El, Wonder Woman / Diana, Power Girl / Karen Starr, Batgirl / Barbara Gordon
Comments
David Philyaw
Since this is DC and the whole master of death lore in HP please add Death of the endless to the pairing
GabrielE RosalesR
Please add Zatanna, Poison Ivy, Power Girl, and Grail; it would be very interesting to see. I also really liked the episode.
Jake Kelly
Nice!
yan boul
I can see maybe in the future poison ivy if it comes less crazy about plant protection who wants to kill the world with Harry who surely has knowledge with magical plants that will surely interest him
Nicholas McNamara
add zatanna she ccould transfer to hogwarts with him
Josh Robbins
Since this seems to be the Justice League and you have powergirl added any chance you could save Galatea?
Erinnyes
Solid start, I love a good HP/DC crossover, and I'm looking forward to seeing where you take it.
adorsey
This would be amazing! I agree maybe add Zatanna
Gr1ffin
Nice story! Only recommendation I have is to the pairing. Maybe add Zatanna so he has someone to explore magic with, even if hers is different.
