Izuku and his...sister?

The two walked together. Kyoka's head only came up to Momo's shoulder, meaning every time she tried to look at the girl - her genie - she found herself at eye level with those perfect, bouncing boobs. Up and down, a little side to side with how Momo moved her hips; She discretely wiped her mouth in case she started to drool.

"So um..." Kyoka looked away a bit before asking. "As a sex genie, a-are you just constantly horny now?"

"Not quite," Momo clarified. "I'm more sexually liberated, but it's not like I have a one-track mind. To be more accurate, it's more like I'm on a hair trigger." She smirked down at Kyoka. "I could for instance be really deeply invested in reading a good book, but if my Mistress came up behind me and started kissing my neck or feeling up my chest, I'd be yearning for more at the first touch."

Her cheeks were fully red and she held her earjacks and poked them together. "You're messing with me a lot for being...m-mine."

Momo smirked. "Are you going to punish me, Mistress?"

"I feel like you'd like that," Kyoka muttered. Fuck it. She's only going to be here a few more minutes. I gotta get a feel! She stopped Momo with a hand and moved herself in front of her. She rubbed her arm and tried - and failed - to meet Momo's eyes. "Can I...? I-I want to feel your breasts."

Momo's smile grew. She'd caught Kyoka staring of course. She'd done everything she could to make them even more enticing with her walk. Momo knew that if Kyoka was going to be her Mistress, she would have to learn to take what she wanted. There was a powerful woman in control **** to be let out. Call it genie instincts. Call it her inherent read on people. But Momo saw it and wanted to help let it out.

"They're yours to do with whatever you please." She leaned forward so her cleavage was even more in Kyoka's face. "All~ of me is yours."

Kyoka hesitated, then reached out and placed her hands on Momo's chest. The woman continued to simply smile at her, so the little rocker got a little more bold. Her hands squeezed gently, lifting and separating. They were so soft! She looked up and Momo was biting her lip. How about more? Her hands traveled to the girl's cleavage and slipped under, cupping the bare tits. They were even softer bare! So smooth, so soft. Her thumbs found those eraser nipples on her own, hard and big. She played with them like joysticks, her thumbs spinning them in circles.

"O-Oh~ Mistress..." Momo moaned.

"Y-You really like this, don't you?" Kyoka asked while kneading those perfect mounds. "I never gave you my name, did I? It's Kyoka Jiro."

"Kyoka..."

The rocker smiled and began to rub those nipples between her thumbs and forefingers. "Call me Mistress Kyo..."

Momo's thighs shivered, her mouth open and panting. "Mistress Kyo..."

A loud bang snapped them out of it. Kyoka immediately removed her hands and **** them into her pockets. Momo was slower - not really caring who saw her disheveled chest - but also adjusted herself to be presentable. They didn't think there'd be anyone else here.

A boy with wildly fluffy green hair was dragging a large refrigerator through the sand. His destination was a massive pile overflowing a dumpster bed that had been parked near the beach. He was short, perfectly between Kyoka's and Momo's heights, and looked rather scrawny. If it weren't for what he was doing, he'd easily be dismissed as weak. But as they watched, amazed, the boy dead-lifted the fridge, carried it over his head with a pained yell, and threw it into the dumpster.

"AH!" The boy braced himself against the dumpster, panting heavily.

"Holy shit," Kyoka gasped. She looked at the rest of the beach, and at the bit of clean sand carved out among the trash. "Are you cleaning this whole beach?"

He turned, noticing them for the first time. "Huff...Y-Yeah. It's for...strength training. My trainer said it would be good not just for me, but for the community." He wiped his sweaty brow, pulling his hair back too. "I-I'm Izuku Midoriya. Nice to meet you."

"I'm Kyoka Jiro, and this is my - my friend, Momo Yaoyorozu," Kyoka nodded. Her eyes tried to focus on his face - he had cute, pinchable cheeks and big friendly eyes. But she kept wandering to those faint lines of muscle; the beginning of biceps under his sleeves, the faint hint of abs under the hem of his shirt, the rock-hard bulges of his calves. Okay, am I into boob girls or muscle boys? What is this?

Momo simply gave Midoriya a modest bow. "Likewise."

"Wait a minute - Momo Yaoyorozu. You were in a missing person's report." The boy looked between the two girls, unsure what to think.

"Oh, that was my being a bit neglectful. I met my lovely friend here just today and time got away from us," Momo replied with an airy laugh and dismissive wave of her hand. "My ride will be here in a few minutes."

Midoriya relaxed. "Okay."

Kyoka walked up to him and looked out at the beach. "You've made a lot of progress. This must be a pain in the ass to do every day, huh?"

"It's painful and tiring, that's for sure," Midoriya chuckled dryly. "But it's worth it. My mentor told me it would be a good deed even if it went unnoticed. He said heroes nowadays are all about the flashy stuff, rescues that will get them noticed. But being a hero is really about leaving the world in a better state than how you found it.

"This was **** when I first started, but every day when I'm about to go home and I see the progress I made...I feel good. Better than I have in years." He smiled out at the beach, still leaning on the dumpster with one hand on his hip.

"..." Kyoka looked from him to the beach. It clicked. That was what being a hero was about. And it was what she wanted to do. "...Would it ruin your training if you had a second pair of hands?"

"Huh?"

"I wanna help you clear this," she said. "I've been second-guessing whether or not I had what it takes to be a hero. But this is a first step. I wanna take it."

"I can talk to my mentor, but I don't see why not." Midoriya smiled. Why was his smile so bright, even when he was so tired? "I'm done for today, though, so want to start tomorrow?"

"Sure." Kyoka smiled back.

Izuku had left his water bottle somewhere in the trash and went to look for it. Momo's ride pulled up while he was gone. Kyoka did a double-take seeing a fucking Rolls Royce! Momo - smart enough to know her Mistress wouldn't want anyone to see her bow to her - shook the little rocker's hand.

"It was very nice meeting you...Mistress Kyo," Momo giggled at Kyoka's renewed blush. "We can talk about that other thing tomorrow." She then leaned forward and whispered, "What do you think of the adorable little broccoli?"

"I-I think he's very nice. He's got the kind of determination I wish I had." She did a double-take to make sure he wasn't around to hear. "And he's pretty good-looking too. Wish he had a hot twin sister."

She heard a snap, like someone clicking their fingers. She looked up at Momo, who simply gave a playful grin. Were her eyes glowing red? No, they were her usual onyx. Kyoka furrowed her brow.

"What did you just do?"

Momo tittered. "Oh, I wouldn't do anything that wouldn't please my Mistress." She got into the back seat of the Rolls. "Don't spend all night keeping them company!"

"Them?" Kyoka watched the car leave with mounting suspicion and worry.

"Hey, Jiro," Midoriya came back with his water bottle, looking around casually while taking a drink. "Have you seen where she wandered off to?"

"Oh, Momo just left."

"I saw, but that's not who I meant. Izumi!" Izuku called out, craning his head around the beach. "IZUMI!"

"Who - ?"

"Quit your belly-aching and help me get this old pachinko machine out!"

The new feminine voice made Kyoka freeze. She remembered what she said. That snap. The fact Momo was a genie. No, Kyoka tried to reassure herself. There's no way. She can't just - no one can just DO that.

She rounded the corner and her legs nearly gave out. There was a female Izuku at the edge of a pile, trying to forcibly rip out an pachinko machine from the trash. Her hair was just as wild and wavy as Izuku's but it was a long unkempt mane barely held in a bushy ponytail. She didn't have the boy's definition of muscle and instead was practically overflowing with curves. Her thick thighs and full rear were tight in the dirty jeans she'd packed them in. Her tank-top and sports bra did almost nothing to stop the wild jiggle of her massive breasts. They had to be as big as Momo's, but on the girl's shorter frame looked even bigger. In fact all her curves were probably Momo's put onto a smaller body.

Izuku rounded the corner and shooed the girl away from her desired object so that he could lift the stuff on top holding it in place. She then gave it a tug and it fell free, though she immediately landed on her butt since she didn't seem nearly as strong as her...brother?

"Why do you want a pachinko machine, Izumi?" Izuku asked her.

"I want the balls and the loading mechanisms. Probably the spring too. Picture it - a gun that fires little metal balls you can use to trip up a fleeing villain. Ooh. Or some other applications..." The girl - the newly created girl! - rubbed her chin in thought.

"I feel like you could do more with parts from a pinball machine instead," Izuku offered idly.

"You think there's one in here?!" The girl lit up in excitement.

Kyoka couldn't take it anymore. "I'M SORRY. WHO IS THIS?!"

The two looked at her in confusion. "This is Izumi," Izuku said. "My twin sister."

The hot twin sister I just wished into existence.