This is not edited in the slightest and like half of it was written with a wrist brace on so I kept hitting the wrong keys. Oops. 

Kaminari rolled his eyes, letting his head hit the wooden chair back behind him. "Ruin what? I literally already know what happened last night. I held you crying in the shower, remember?" 

"Yeah, yeah, whatever," Izuku grumbled, sniffling once. "You weren't exactly the one I was worried about." 

"You slept with Shinsou, big deal," Sero mumbled with a shrug. Even if he was trying his best not to appear bothered by it, Izuku could sense his discomfort a mile away. 

"It bothers you, like I said it would." 

"Yeah, it bothers him," Kaminari said back, sitting up a little further in his chair. "It bothers both of us, big whoop. It's not anger, Izuku, it's annoyance. Just come clean, apologize for whatever it is you said that had you so worked up this morning, and he'll be livid for all five seconds before he's over it, just like I was." 

"I was meaner to him," Izuku said, pointedly not making eye contact with Sero. 

"Baby, I already do not care." Sero's tone was gentle, like he usually was with Izuku, but there was a hint of exasperation. Izuku couldn't tell if he was annoyed that he kept getting shut down or that Izuku was apparently making it a bigger deal than it was. "You disproved everything you said last night." 

Kaminari's brows lifted as he looked over at the dark-haired man. "What did he say last night?" 

"A lot of shit about how we're not dating, so I should just shut up," Sero mumbled. "Basically." 

A small snort left the blond as he glanced over at Izuku. "Well, you're dating now. Free pass to yap away." 

"Okay, fine, whatever," Izuku snapped, using the table to pull himself into an upright position. "You wanna know what happened? I stormed out of the house and walked around town until Shinsou found me sitting on a curb. He would have taken me literally anywhere, but I wanted him to sneak me into his room without you knowing. After he went and talked to you, lied to you for me, he wanted to talk to me about it. Despite how shit Shinsou is at romantic relationships, he's actually a good person who cares about you, Hanta." 

Sero's jaw ticked at that remark, but he stayed silent so Izuku could finish his story. 

Jade eyes rolled when they didn't try to change the topic, and Izuku was stuck recounting the night's events. 

"Anyways," he mumbled, barely audible. "I didn't want to talk about it because I was convinced you would hate me, and I already hated myself. I just wanted to shut my brain off, and to do that, I was gonna need something stronger than weed or semi-violent sex. You can guess which one I picked." 

The kitchen fell into a tense silence that Kaminari couldn't resist breaking by clearing his throat. "So, about the begging-" 

"I did not beg," Izuku exclaimed, louder than he had meant to. His voice bounced off the walls, causing him to wince and silently plead with a higher power not to let any of the other occupants of the house hear. 

When Izuku finally looked back up, he was met with a pointed stare from the blond. 

"Okay! I begged a little bit, because for some reason Shinsou was wearing his righteous panties last night," he finally admitted, not attempting to hide the disdain from his voice. "He said I was making a mistake, I said he could use me and throw me away, blah, blah, blah. You get the point." 

Sero released a breath, his head falling into his hand. "All this because I cared about your safety?" he asked in a soft voice. 

Izuku's eyes did not water, and his lip did not quiver. Shut the fuck up. 

"I've never had someone care, Hanta," he admitted, his voice high and pleading. "Never someone who didn't have to. My dad left before I could even remember him, my mom died, and even Sho and Kacchan only cared because their moms told them to." 

"Uraraka and Toga?" Kaminari asked, like the end-all, be-all.

"They're insane. They don't count," Izuku said as he turned his head away. 

Sero shifted, his chin now propped up on his hand. "It's hilarious you think anyone could make Bakugou care about something he didn't want to." 

Izuku rolled his eyes, finally meeting Sero's dark gaze. "That's so not the point." 

A dark brow lifted in return. "The point being that you self-sabotage because you fear abandonment? I already knew that one, baby. I knew as soon as you mentioned the party that it would turn into a fight. I was banking on the fact you'd listen just enough not to go, even if that meant you ran to Shinsou." 

 Izuku's nose scrunched. "That's disgustingly selfless of you." 

A small chuckle left Kaminari's lips, slicing through the tension and leaving the air feeling a little lighter. "Yeah? Well, get used to it. Hanta's the definition of a lover." 

This time, Izuku's eye roll was a touch too fond. "Duly noted." 

"I can't believe they actually vacated the premises," Kaminari said with a low whistle as he looked around the empty bottom level of the house. 

A snort left Izuku's lips. "Can you blame them? With my family history of fighting?" 

"Fair point," the blond hummed, "but they failed to account for Hanta's overall chill-ness outweighing your general crazy."  A wink was thrown in at the end. 

Izuku's jaw ticked as he forced a strained smile onto his lips. "Call me crazy one more time." 

Kaminari's playful demeanor dropped in an instant, quickly replaced by fear that was only partially for show. 

"That's what I thought," Izuku said with a happy hum. "Can we go hang out with my friends who drove way too many hours to get here, now?" 

"Of course, baby," Sero agreed quickly, already pushing himself to stand and offering a hand toward him. 

Izuku eagerly accepted it, hopping to his feet and making a beeline for the stairs, pointedly ignoring the laughter ringing out behind him. He was only partially worried about what he'd find past Ashido's bedroom door. 

He came to a stop in front of the door, just standing there for a moment. 

"You gonna open it?" Kaminari asked with a raised brow, never one to bother with the courteous thing to do.

"How about we try knocking?" Sero suggested with an eye roll. 

Izuku held up a finger toward them, implying that all of them wait. 

"We're decent, beloved!" Toga called from the other side. 

 A sigh slipped from his lips as he pushed the door open. Ashido was sitting at the top of her bed, leaning back against the wall as she flashed a wicked grin in Izuku's direction. Toga was lying on her stomach, flipping through a magazine as Uraraka sat on her back, french braiding her girlfriend's blond hair. 

"Braiding each other's hair?" Izuku asked with an unamused brow raised. "Bit on the nose, don't you think?" 

The magazine in Toga's hands slapped shut as she shot him a scowl. "You ruin all our fun, Izu." 

"That's what I'm known for." 

Uraraka shook her head with a pout that quickly morphed into a smile. "Let's go shopping. Please, Izuku?" She had tilted her head down, making her brown eyes even larger as she batted her lashes at him. 

Puppy dog eyes didn't work on him. He was the youngest sibling; he invented puppy dog eyes. 

"Did you two get jobs while I was away?" he asked, knowing their definition of shopping involved a lot more sneaking, lying, and running from mall security. 

Toga rolled her eyes at the question, calling Izuku stupid with her face. "No, but we snagged Todo's card while he was herding us out of your apartment."

"You can't just steal my brother's credit card!" 

"Does he pay the bill?" Uraraka asked, tilting her head. "I don't think he does, and since when do you care about Enji's bills?" 

Izuku groaned and stared at the ceiling, knowing that he'd lost. "The flaming pile of shit is gonna think Sho finally got a girlfriend when he looks at the bank statement." 

Toga snorted behind her hand. "As if all his kids aren't flaming themselves." 

"For the last time, literally just Sho," Izuku explained, knowing his other siblings were straight. Well, Touya was still a wild card, but that was because he didn't want anyone within five feet of him. 

"Don't actually care," Toga said with a fanged smile, hopping up from the bed. "Now, where's a good mall in this town?" 

"Only if 'Chako is driving," Izuku bargained. Toga didn't actually have her license, and her driving spoke for itself. 

"Yes," Uraraka said as she stood, "but only because there are way too many guys to bitch us out if you die." 

"Of course," Izuku mumbled as he turned to his boyfriends with an apologetic smile. "We won't be gone too long." 

"Lies!" Toga cheered as she disappeared from the bedroom with Uraraka laughing after her. 

Arms wrapped around Izuku's middle from behind him, a tuft of bright blond hair peaking over his shoulder and letting him know it was Kaminari, not that he really needed the confirmation. Sero stood in front of him, amusement written all over his face as Izuku melted into the embrace. 

"You coming back here tonight?" Kaminari asked in a breathy tone, punctuated by a kiss to Izuku's jugular. 

Izuku hummed softly, "After this trip, I'll have enough clothes to move in, so yeah, probably coming back here." 

Sero cocked a brow at both of them. "And Todoroki isn't going to be mad about the credit card theft?" 

"Not if it means we're spoiling baby Izuku!" Toga called from the hall. "All his siblings want to shower him in things, and he hates it." 

"Things?" Kaminari echoed. 

"I grew up poor," Izuku said with a shrug. "Yeah, Rei adopted me, but it was post-divorce, so it's not like she was drowning in it. The kids all had cards courtesy of Papa Douche, so their favorite hobby became buying me shit. My hobby is returning that shit and leaving wads of cash in their rooms." 

Yes, he grew up poor. Yes, he was still poor. Yes, his mom died. No, he is not a god damn charity case. 

"Don't buy you shit with my trust fund, got it." Kaminari hummed the words into Izuku's shoulder, sending shivers down the shorter man's spine. 

Izuku tilted his head to try to catch a peek at the blond. "You have a trust fund?" 

"Don't gotta worry about me, though," Sero said with a teasing smile. "I probably have even less money than you. Some of us got scholarships," he added with a pointed look at the blond. 

"Hey! I got a scholarship, too," Kaminari said with a pout. "Some of us just aren't smart enough for full rides." 

"Wait, wait, wait, back up to the trust fund," Izuku said as he stepped out of Kaminari's arms. 

"So, you do want a sugar daddy," Kaminari said with a wink, crossing his arms over his chest. 

Izuku cocked his head to the side, ignoring the teasing. "Why do you make such a big deal about free weed if you're loaded?" 

Sero wrapped an arm around Izuku's waist, pulling him closer. "Mommy and Daddy track his card. He needs a reason for every dollar he spends." 

Izuku's brows knitted together as he watched the amused blond in front of him. "Take out cash." 

Kaminari shrugged. "I did that in high school. Now, every cash withdrawal ends up with a twenty-minute phone interrogation." 

"Don't answer." 

"I won't have a phone. They'll cancel my plan." 

"Pay it yourself." 

"With the money they won't be giving me anymore?" 

Izuku rolled his eyes at the question. "Get a job." 

Kaminari's face scrunched as if he'd just eaten a lemon. "Um, no?" 

"You're just like my brothers," Izuku grumbled. He turned and placed a quick kiss on Sero's cheek before extracting himself from the man's arms. 

Kaminari stuck his tongue out, his distaste worsening. "Don't compare me to Bakugou, please." 

Izuku patted his shoulder as he walked past. "Actually, I was mostly talking about Touya." 

"I haven't met that one yet," Kaminari mumbled, suddenly unsure how offended he should be. 

"And won't that be fun," Izuku said with a sinister smile as he gave them a quick wave. "See you guys in a few hours!" 

Wrist is still fucked, but my job is making it worse so how bad can typing a few words on a keyboard really be for me? Anyways, I love the idea that Kaminari is a trust fund baby. I genuinely have no idea if his parents are rich in the show or not, but they are now!