"Cat got your tongue, Bakugo?" came the taunt from the American exchange student as he took out his phone, snapping a quick picture of Bakugo and Midoriya in their compromised position. The three of them stood still in the lavatory, the water dripping from an errant pipe making background noise.

"Shut your damn mouth, you extra!" Bakugo screamed, pointing at the intruding student with his right hand. "You really like pissing me off, don't you?!" he accused.

"Is your vocabulary only consisting of profanity, you stupid clod? And I have a name, you know. It's Jason Anderson," he told them. "And what about your friend over there?"

Midoriya shrunk himself slightly, trying to get out of view behind his host. "He's not my friend, he's…my partner," Bakugo admitted through gritted teeth.

"Partner? Curiouser and curiouser, indeed," he spoke, his heavy American accent making itself known throughout his every word. "Come on now, speak up," he encouraged mockingly.

"I-It's Mid—" Izuku began before his host's spun around and slapped a hand to his slimy face, using his other one to make the "ssh" gesture.

"Stay quiet, you got that?!" Bakugo demanded, a fierce look in his eyes showing that he was not fucking around. Obediently, his partner nodded his head in confirmation, his eyes wide in fear. "Get back on, quickly now."

As if there were no time to spare, Midoriya immediately followed the command, slithering back inside his host's pores and skin. He made a gluck gluck gluck noise as he did so, until finally Midoriya was safely back inside Bakugo's body. Spreading himself out evenly to make sure his host's center of balance was similar to before he went inside, Midoriya began to ramp up sweat production and testosterone, amping his host up to fight.

"That's a neat trick you got there," Jason admitted, looking fascinated by what he saw. "But I wonder what—"

Jason wasn't able to finish his sentence, however, as Bakugo marched right over to the thin American and picked him up easily with one hand, as if he was as light as paper; this was due to Midoriya's help, as he was amplifying all of host's attributes. Katsuki glared hard at the student until he threw him to a urinal with said one hand and confiscated Anderson's phone, deleting the incriminating photo. "Listen to me very carefully, you pencil-thin extra: Leave me and Slimeface alone and stay quiet, or being thrown around is going to be the least of your problems," Bakugo threatened, making a stronger than normal explosion in his right hand for intimidation. "Understand, bitch?" he questioned, tossing the guy's phone back to him.

Meekly, Jason nodded before scrambling out of the room, leaving the two of them by themselves.

"Um, Bakugo?" Midoriya asked quietly, trying not to disturb his host as he was in the middle of cleaning up the huge piles and upon piles of garbage from the Takoba Municipal Beach Park, better know as Dagobah Beach. He was also setting up dummies made of garbage in a handmade arena of sort. "You do know that I could just disintegrate all the garbage, right?" he mentioned, lowering his host's body temperature to allow him to work harder.

"Figured you could do that, Booger Face," Bakugo remarked, wiping his brow of sweat. "You can modify my body a lot, right?" he questioned, wanting to make sure he was correct.

"Yeah, I can. You already knew that though," Izuku reminded, wondering where his host was going.

"Put more sweat glands on my hands," the blond-haired teen demanded, holding out his hands with his palms facing the skies. He watched as green slime/goo appeared on his palms and vibrated and twitched on it. After a solid ten seconds it receded back into Bakugo's body, leaving him one thing to do: Test out his quirk. He decided to do a small firecracker effect on his hand, like he was four again when he first gained his quirk. As soon as he released the explosion his hand exploded in huge booms instead of the small firecracker he had intended, his power enhanced. "Hell yeah! This is fucking awesome!"

"How are we going to test my quirk?" Midoriya asked, creating small mouths inside of his host's ears.

"Easy, you're going to destroy and remake my hands over and over again until you can do it in seconds, not minutes," Bakugo replied, seeing that as good quirk training.

"Okay, you're the boss."

"Fuck yeah I am," Katsuki confirmed, holding out his hands for his friend partner to do his thing. He watched in fascination as his hands were destroyed to the base of his wrist before it was rebuilt, the order being his bones, his muscle fibers, then skin. The first time it happened it took a solid minute. The fifth time it took 45 seconds. It went on like this for half an hour until Midoriya was able to destroy and remake his host's hands in five seconds flat. "That's better, Slimeface."

"Really? Not 'Slimefuck?'" the slime teen asked geniunely.

"Now that you're good with my hands, you're going to do both of my arms next, then both of my legs," Bakugo stated, ignoring his friend's partner's question.

It was weird, being armless then legless that is, but Katsuki sucked it up to better train his partner just in case something crazy happened where he needed to lose a hand, arm, or leg. They stayed at the beach for a long while, until the sun was beginning to set. The blond-haired teen's stomach grumbled fiercely, making the two of them go home to rest.

"Hey, Katsuki," his mom greeted him, calling out from the kitchen. "How was your day at school?"

"Our day was fine, Mom," he called back, going into the kitchen and grabbing a protein bar to snack on.

"'Our?'" Mitsuki questioned, stopping her cleaning of the dishes.

"Shit," he remarked within his mind. "I meant my day was fine, you old hag."

"You little shit," she shot back, scrubbing the dishes with additional zest in frustration. "You gonna eat a lot like last night, brat?"

"Yeah, I'm starving," he said, his mouth full of protein bar. He then grabbed a glass and filled it full of water before downing it like a dying man.

"Jeez, you act as if I don't feed you," Mitsuki noted before looking at her son with a scrutinizing look. "Katsuki, have you been working out?"

"Yeah, you could say that," Bakugo half-lied, as he technically was working out earlier by moving trash at the beach. "Call me down when dinner's done," he told her before walking up the staircase to his room. He hanged his backpack on the hook that was on his bedroom door, and then started to take off his clothes, getting into his pajamas (which consisted of a t-shirt and shorts). He laid down on his bed, scrolling on his smartphone when he noticed something odd: "Did you use my phone last night?"

"…yes, do you mind?" Midoriya asked hesitantly.

Bakugo weighed the pros and cons of having someone else use his phone. "I don't give a fuck, so long as it doesn't bother my beauty sleep," he warned, going through his search history. "What's with all the medical bullshit?"

"It's so that I can better tune your body. You'd be surprised how inefficient human bodies are," Izuku explained. "Did you notice that your arms aren't tired from all the workout you did on the beach?" he mentioned, "I'm suppressing the pain receptors in your arms and legs so you don't feel fatigued."

"…thanks, nerd," Bakugo thanked in his own way before closing his eyes. "Now leave me the fuck alone, I'm tired."

"You sure about this, Slimeface?" the blond-haired teen inquired, the two of them back at Dagobah Beach. It was a Saturday, his day off from school and they were back at the beach to train their quirks.

"Eventually people are going to find out about me, so we might as well make some combo moves," Midoriya relayed his thought process to his host. "Besides, I literally cannot feel pain, Bakugo. I won't feel a thing," he reminded before making a round ball of his slime/goo in Katsuki's right hand. "Test it on that trash dummy, please," Midoriya requested, waiting patiently.

Shrugging, Bakugo faced the trash dummy in the handmade arena and pointing his right palm outwards to the dummy's face, before exploding his palm. Unlike his usual explosions, this one was goopy and shot out the slime with a splat noise, covering and spraying the dummy's whole face with Midoriya's slime. "Huh, that would be a good blinding move," he theorized, looking at his palms as he did so.

"Let's call it 'Ultimate Move: Goop Shot,'" Izuku suggested.

"Not a bad idea, Slimeface," Bakugo praised, a smug look on his face. "Wait a minute! I just got a badass idea!" he suddenly shouted, an excited (albeit feral) look about him.

"W-what is i-it?" Midoriya stuttered out, a little freaked out by his host's tendencies.

"As you have probably realized, my quirk, Explosion, only works in my hands," he paused, examining his palms for a second. "But what if it didn't have to be?"

If Izuku had a body right now, his jaw would've hit the floor at the idea. "Give me a second to examine your palms more thoroughly." After a full minute of nothing but incoherent mumbling from the slimy teen, Midoriya finally gave his assessment: "Your body secretes a nitroglycerin-like sweat, but only your hands have an igniting agent in them. I'm going to try to remake it on the soles of your feet, so take off your shoes and socks."

"Don't give me fucking orders, Slimefuck!" Bakugo angrily shouted as he complied to the request. He yanked his shoes and socks off and threw them to the side, as they flew across the beach sand was dragged up in its wake. He sat down, waiting for the next instruction.

"Okay, I did my best to recreate the igniting agent, so try using your quirk but on the soles of your feet."

Grumbling about following orders, Bakugo wiggled his toes a bit to get a sense of his feet before realizing that he could feel the igniting thing that he usually felt on his hands were now also on his feet. Carefully, he decided to let out couple of firecracker-like explosions.

Crackle crackle crackle came the noise and smoke from his foot. With a wide grin he got up and went to the training dummy and, standing back four feet away, did a roundhouse kick that would intentionally miss the dummy's face. However, right as his foot was in alignment with the head of the trash dummy, Bakugo Katsuki used his quirk in his foot to release an explosion. Boom! came the sound as the dummy was sent sailing thirty feet into the heaps of garbage, before one of the piles began to topple over it. Bakugo, meanwhile, was thrown back on his ass by the recoil from his foot. Overall, he would call it a success. "Hey, Midoriya," he began, the grin never disappearing from his face. "You think I could fly now? With all my limbs, I mean."

"I…maybe? The explosions you produce would have to have enough recoil to lift you off the ground and—"

"Shut up and increase the number of sweat glands on my palms and soles," Bakugo cut him off, demanding his partner to do as he was told. Obediently Midoriya listened and sent slime to the aforementioned areas, increasing the sweat glands tenfold. "Alright, knowing how much stronger you can make my explosions, I'm gonna start with firecracker-levels of power in 3. 2. 1…now!" He activated his quirk in all four parts of his body and rose off the ground three feet. He stumbled a little bit and shifted, trying to find a balance as he stayed in midair. After fifteen seconds of maintaining flight he turned off his quirk and landed back on the ground. "Holy shit, you saw that, didn't you?! I was badass, like fucking Iron Man!"

"Yeah, Bakugo! Good job," Midoriya congratulated, sprouting out of his left arm to give him a gloopy-sounding handclap. "I bet with even more practice you could beat Hawks in flying," Midoriya admitted, in slight awe of how easy this was coming to his host.

"You're damn right, nerd! I bet I could outpace that chicken fuck someday," Katsuki declared as he pumped up a fist in the air, a victorious look upon his face.

"Katsuki, are you on drugs?" Mitsuki asked casually, as if discussing the weather.

Bakugo, who was downing his water at the dinner table, began to sputter and cough on it. "What the fuck, you old hag?!"

"Katsuki, don't talk to your mother that way. Now, honey, where ever did you get that idea?" Bakugo Masaru (his father) asked. The three (four?) of them were sitting at the dining table eating oyakodon as a family.

"You haven't noticed, dear? Ever since a couple days ago he has been eating a lot more than usual," she pointed out, munching on the rice in her food.

"He's a growing boy, Mitsuki," Masaru countered, taking a big bite of chicken and egg.

"Enough to feed two people, dear?"

"I'm right here, you know?! Don't talk as if I'm not!" Bakugo shouted, slamming his fists down on the table, causing all the glasses and bowls to shake and move. Instantly Mitsuki bonked the top of his head in punishment.

"Don't slam down on the table!" Mitsuki yelled, an angry look on her face.

Bakugo, equally (if not more) angry, yelled back, "Don't hit me, you old hag!"

"Sigh," Masaru let out softly, a fond look on his face at the bickering between his family.

"Can we talk?" came the meekish voice of his parasitic companion. Bakugo sighed in annoyance as he was just about to go to bed. It was nearly midnight, with the moonlight streaming in from his bedside window, illuminating the blond-haired teen.

"What is it, Booger Face?"

The slime hesitated for a moment, insecurity flashing behind his nonexistent eyes. He knew what he wanted to say but didn't want to come off as controlling. "It's about your parents, specifically your mom," he started, letting silence fill the air.

"What about my old hag?" the host responded back questioningly, a confused look on his face as he didn't know the conversation was heading in this direction.

"See, right there," Midoriya pointed out, "You treat her like garbage."

"Why the fuck do you care?" Katsuki asked, annoyed by his companion's opinion. "She's my mom, I can treat her however the fuck I feel—"

"Youwon'talwayshaveher," the slime teen interrupted quickly, speaking too fast to be coherent. He took a nonexistent breath before he sprung out of Bakugo's body, practically straddling his host's lower portion of body as he sat on him.

"Get the fuck off me," Katsuki demanded with a growl, a blush quickly forming on his cheeks because of their "intimate" positioning.

"You won't always have her, Bakugo," Midoriya repeated, crossing his gooey arms together as he mustered his courage (but still not looking his host in the eyes). "One day you'll lose her and wish to anyone who'll listen that you can talk to her one more time."

That sounded…oddly personal. "Slimeface…Midoriya," Bakugo corrected himself, knowing his next question was going to be serious. "What happened to your mom? Why were you on the streets when I first met you?" he asked, his voice oddly sounding gentle.

Izuku frowned before letting out a sigh, admitting, "An earthquake shook my neighborhood when I was about seven. There was rubble and debris everywhere, including on my mom and me. At the time I was thought to be quirkless, as I had an extra pinky joint, but I saw that my mom was laying down, unconscious and being crushed by the rubble. I wished out loud to anyone listening that I could just break free, I wished that I didn't have a body so that I could slither free. Somehow…my wish came true, and I became what I am today," he gestured to his slimy physique. "When the heroes arrived, they told me bluntly that my mom was dead. After that I bounced from orphanage to orphanage, nobody wanting to take me in as I needed a host to survive, so I was constantly starving. I survived by draining people of some of their nutrients and minerals and the like when they slept. One day I realized that no one was going to take me in, so I left and hit the streets; surviving off of animals and the occasional drunk person to sustain myself."

Katsuki didn't respond, not at first, as he wanted to soak in all the information. After a moment of silence Bakugo looked his partner in the eyes and said, "You didn't deserve that bullshit. Fuck them."

Midoriya was silent for a moment before he began to giggle. "Thanks, Bakugo. You're the first person not to pity me," he praised.

Author's Note: I love to answer questions or criticisms, so if you have one send 'em my way! Next chapter is going to have Sludge Villain appear, so we're finally reaching the canon timeline!