30

 Chapter 30: Level 30

Itsuka watched as Nejire went flying into the invisible wall that was preventing them from just flying across the valley and going to, as Nejire put it, "Mountain of Mighty Mammaries." Which they both agreed was a better name than Peaks of Plenty. When Nejire crashed into the invisible wall it made a sound akin to a bird crashing against a window, only instead of confused squawking it was simply frustrated Nejire noises.

"Let! Me! Through!" Nejire pressed her face and breasts against the barrier, her legs flailing about like she was trying to swim through.

"Come on Nejire," Itsuka scooped up some more snow in her bare hands. It really wasn't really that cold. Well it was, but it didn't bother her. Really, snow was little more than just wet, slightly chilled mush to her. At least her feat didn't actually make it so that she couldn't enjoy a good warm bath and a cool drink. "You won't be able to get past the wall, we should just go-"

Itsuka looked at the long, winding, snow-covered path and noted the two dozen or so spots that were wide enough for a real fight in between all the rather treacherous terrain. They had already gone through a dozen or so fights. And honestly, there were only so many ice monsters they could fight until things got boring. Most of them weren't even that threatening.

Sure, the winter wolves looked amazing and were actually really terrifying, up to the point where they started to wag their tails when Nejire had the great idea to try to play fetch with the puppies. The Snowmen were annoying because if she didn't beat all of them at once they'd just rebuild themselves. Then there were the snow monkeys whose only attacks were to try and grab their tits.

Overall, she was once again trying to figure out why she had been looking forward to going into this dungeon. It was just a long, boring, tedious hallway with annoying but easy fights that didn't even present a challenge.

Really, the only reason why she was taking a break was out of sheer boredom. Maybe she should see if Nejire would give her head or something.

But it was funny watching her overly busty blue-haired friend try to smoosh her face through an invisible wall. And with Nejire's current outfit of a playboy bunny girl, she also had a good view to induldge in her new found lesbian tendancies. Again, oral would be welcome. Or Izuku's dick. Dammit. Now she was horny again, and there was no place good to relieve herself. Nejire couldn't touch the snow without complaining about how cold it was.

Which meant if Itsuka wanted to get any kind of action, they either needed to find some kind of a resting place in the dungeon, or, better yet, beat it, save Menu-chan, go home, and make sure that Izuku was back.

"Dammit," Itsuka sighed and pressed her head against her knees. When did she become so sex crazed? Well, she wasn't, not really, but she could probably pinpoint her current horniness to when she was thirteen and discovered that masturbation was an amazing thing to do when she was bored and alone.

If she had to guess, Momo's thirstiness came about from years of suppressing all of her urges and finally being able to let it all out. Nejire's was, well, Nejire was just Nejire, that girl's mind functioned in weird and interesting ways and she was always down to do whatever, especially if that whatever was sex. Still, it was odd that she had never been with a guy before Izuku.

Maybe?

Ehh, that wasn't too important right now.

And really not what she should be thinking about.

"Itsuka!" Nejire shouted, her ass stuck up in the air while her torso was hanging freely. It looked like she was being held up by something at her waist. "Help! I'm too thicc and got stuck!"

Wait.

"Did you find a hole in the wall?" Itsuka jumped up and looked at where Nejire was stuck, it was a good twenty or so feet off the side of the mountain, and she looked completely ridiculous, but it looked like, much like real video games, there were ways around things like invisible walls. "How did you manage to get your tits through but your not hips?"

"Too thick!" Nejire kicked her legs and wiggled her butt. "With two Cs!"

"I thought you had Gs?" Itsuka rolled her eyes and tried to figure out how she was supposed to get over to Nejire to help her. The only thing down there was a foggy pit that if she fell too far would just put her back at the last fight area.

"Thigg doesn't sound as good!" Nejire continued to flail her arms helplessly, it looked like she was easily able to re enter the dungeon zone so that was good.

That meant they found an exploit.

Oh man that was great.

Now then. "Alright Nejire, forgive me if my aim is bad and you get a finger up your butt!"

"Wait!" Nejire struggled trying to look back. "What are you planning on doing? My butt is a no penetration zone!"

Itsuka didn't wait for permission and pushed off of the ice covered rock wall and jumped towards Nejire, a large hand extended behind her. She would have to apologize to Nejire later. With one finger roughly as large as Nejire's leg she poked the blue haired girl in the butt hard. There was a pop and Nejire popped through to the other side of the invisible wall while Itsuka hung on the other side by just her fingers.

"Ouch! Itsuka!" Nejire floated just on the other side of the wall, her reflexes stopping her from falling almost instantly. Even as she started to rub her ass. "That hurt! A lot!"

"Sorry!" Itsuka shouted back and pulled herself back up into the narrow hole Nejire found. Once again she was grateful that out of the three of them, she had the slightest, most athletic profile, even if the hole did pinch around her bust a bit, she was able to wiggle her hips and butt through the gap.

Nejire flew over and grabbed her hand, helping to pull her through and stopping her from falling into the fog below. Before Itsuka could thank Nejire, the crazy girl pulled her up by the arm and then sunk her hands under Itsuka's shirt and grabbed onto her breasts. "Ahh, I knew it. Even if life is cold and hard, titties are soft and warm."

Itsuka let out a half sigh, half moan, and rolled her eyes at Nejire. Well as long as the girl didn't drop her they should be fine. "Alright Nejire, take us to Mount Titty!"

"I'm already there." Nejire purred rubbing her head on the back of Itsuka's head.

"Hey, hey, we're currently flying! Please focus on that! You can feel me up when we finish the dungeon!"

"Ohh? So when we finish the dungeon I can do whatever I want to you?" Nejire asked. "You did hit me hard just now."

"Yes, fine," Wait, what happened if they fell out of bounds while wall hacking? That didn't sound like a good idea to test. "When we clear the dungeon I'll do whatever you want! Just start flying!"

A burst of speed overtook her senses as Nejire turned into a boob powered rocket. The long, winding mountain trail flew past on one side, the enemies spawning in on each platform and looking rather confused by the whole thing. A few mobs even tried to charge at them only to crash into the wall and fall to their doom. In a matter of moments Nejire cleared the distance and they were at the giant woman shaped mountain with tits even larger - proportionally - than Nejire's were.

"Do you think I would look good with boobs that big?" Nejire asked when they approached the trail leading up to one of the mountain's nipples where a warm steaming waterfall was pouring out from it. It was about the area where they saw the dragon vanish, and the cavern itself was easily large enough for the dragon to enter.

"Uhh, are you really thinking about putting more points into your charisma?" Itsuka asked and gestured towards her own chest and then towards Nejire's. "Because I'm already busty, and you've got like, twice my tits."

And now she wanted a bit of charisma too. Dammit! Stupid boob envy! She didn't want to be Nejire's size, but, maybe, Momo's?

"Hmm," Nejire hummed as they came in for a landing, just to the side of the waterfall was a large worked path, lit by glowing torches and numerous statues of busty women carrying water jugs lined both sides of the wall. "Maybe not forever, but I think like something temporary would be fun. Especially for just like the night."

"I guess that would be fun for a bit." Itsuka stepped onto the ground and gave a slight stretch, Nejire's hands were still firmly pressed into her breasts though.

"Mmm," Nejire rubbed her face into Itsuka's back and hummed, "I just had a fun thought."

"Does it involve boobs of obscene size?"

"Yes! How'd you know?"

"Because you have tits for brains?"

"I'll take that as a compliment!" Nejire pulled her hands out of Itsuka's shirt and spun around to look at her and grabbed her breasts once more. "Just think about it! Boobs big enough to be used as a bed! But when you wake up they're back to normal! That sounds so comfortable! I wanna sleep on some boobies."

"You want to sleep on boobs?"

"Yes."

"Like your whole body. On the boob?"

"Yep!"

"A big, hot, sweat covered boob? You want to drown in boob sweat."

"Stop trying to ruin this for me." Nejire pouted and crossed her arms under her chest. "It's not like it'll happen anyways."

"Sorry, sorry, You can sleep on my hand if you want, I'll even use a super nice moisturizer." Itsuka laughed and walked over to the steaming, rushing water. It was following video game logic in that it looked like the water was pretty slow up to a certain point then just remembered that gravity existed and sped up for the waterfall. Was the water a hazard?

She stuck her finger in and instantly felt something. Not a scalding heat, she didn't even get a notification that she had blocked fire or heat damage. Instead, the notification she got made her worry so much more.

[Bountiful waters has increased your strength and charisma by 1]

Part of her was too stunned to react as she read that message but a smaller, greedier part of her wanted to keep her hand in the water just the slightest bit. Six seconds passed and the effect happened again.

[Bountiful waters has increased your strength and charisma by 1]

Her bra at this point had just been destroyed, and her shirt was now straining against the sudden growth of her chest. There were many things wrong with what just happened. One, there was a strength growth just sitting there but at the cost of increasing her bust size. Two, it felt really good. Three, there was no way that Nejire didn't see that her breasts just went up two cup sizes.

And the worst part. She kind of liked how they felt at this size. F-cups.

"Uh Ituska." Nejire asked moving over to poke her in the chest. "Did your boobs just grow when you touched the water?"

"If I say no are you going to believe me?"

"Is it temporary?"

Nejire being reasonable? Sometimes it was hard to remember that Nejire, while she acted like an airhead, was actually among the smartest people Itsuka knew. Which, considering how Momo had been the top of every test she'd ever seen the girl take, was pretty impressive.

"Umm." She looked up and saw that there was indeed a timer where a buff was. The buff was of a pair of tits.

[Bountiful waters 59:21]

"Yes, it looks like it lasts an hour per point."

"Sweet." Nejire stuck her hand into the warm water, her smile never fading. "Oh wow, this feels as good as our hot spring at home!"

It was a bit like watching two already over filled water balloons inflate even more, a steady, easy growth of a cup size every six seconds, after eighteen breathless moments, Nejire stood, her chest now much, much larger than it had been before, and somehow still looking as perky and as bouncy as before. Indeed all of Nejire just seemed to look that extra bit better.

"Oooh, that's nice. But we should get going so we can properly enjoy this place right?" Nejire pumped her arms causing her breasts to jiggle, wiggle, bounce, and just look like so much fun to grab.

"Oh. Uh. Right!" Itsuka nodded, trying to get boobs out of her brain long enough to start moving forward, and to ignore the temptation of just jumping into the water for a bit. "Hopefully the water's not some trap or hazard that will make it hard to get to the dragon."

"Ehh." Nejire shrugged, causing her breasts to bounce again. Seriously, for their size it was like they were filled with something lighter than air. "If that happens I think I know a few activities we could do for an hour. Or two."

Oh right, she was dating Nejire. And Nejire knew how to flirt.

Nejire could flirt good.

Realization dawned on Itsuka that any waking moment she had that wasn't spent making out, having sex, or being a deviant was due to Nejire's good graces. Well maybe not, but it was certainly why they weren't currently making out in the water right now. That, and they did need to save Menu.

"You just want to see if Menu can make our own hotspring out of this stuff." Itsuka continued on their way up the long winding pathway filled with attractive statues of large busted women. The statues were only growing bustier the further up ahead they got.

"Oooh! That's a good idea!"

Her concerns about the water being a hazard proved to be correct as they made their way through several obstacles that required balance, grace and agility. Unfortunately for the challenges, Nejire could fly and Ituska could punch.

The only time they got in trouble was with a puzzle that they got wrong and one of the statues tossed water on them.

By the time they reached the end of the challenges not even the feet of the statues could be seen beyond their titanic busts. And most of the buffs had vanished from both Itsuka and Nejire, returning their bust size to just slightly larger than normal, which was still a lot bigger than most people in Nejire's case.

"Wow, this place is amazing." Nejire spread her arms wide and looked around the large open cavern that was several times larger than the USJ, though instead of different zones the whole area looked like a massive collection of perfect, naturally tiered hot springs, each one flowing into the pools beneath it in a thousand small steaming waterfalls. Those busty women statues were scattered about the pools, more water pouring from jugs they carried on their shoulders. "Why isn't the water coming out of their boobs though? That would make more sense."

"You can ask Menu when we get her." Itsuka stepped into the area and looked around. On the far side of the cavern, at the highest and largest of the pools a large red tail was swinging happily side to side. If a dragon was just bathing in a water that was doing nothing but increasing its strength and charisma then she better hope that dragon didn't benefit from it. "I think she's up there. You ready to fly?"

Nejire nodded. "Let's go!"

They took but a single step and the dragon stirred. Its large frame stirring the water and sending a tidal wave of water towards them. Every single muscle visible beyond its red scales boiled with a bursting amount of power. Its large eyes narrowed at them and it's roar shook the mountain. Beyond it, for just a moment, Ituska saw her.

A glimpse of purple.

Menu! She was tied up at the highest pool, she didn't look like a giant pair of tits so she was probably out of the water.

Nejire grabbed Itsuka and flew up, avoiding the water and then flew towards the dragon at blazing speeds.

The dragon likewise took off and charged at them, flames spewing from its mouth.

"Umm." Nejire looked around, and Itsuka felt her shrug. "Yeet!"

"Yeet?" Itsuka didn't have time to ask as Nejire spun in the air and tossed Itsuka right towards that fire filled maw of razor sharp teeth. Oh. Yeet. Nejire had just thrown her at a fire breathing dragon that was easily larger than Mount Lady and several times as destructive while shouting yeet. If she included the fact that all the water made her boobs bigger then It would be an apt description of her life since she met Izuku.

And she wouldn't have it any other way.

A smile spread on Itsuka's face as she felt a rush of heat from the fire coming from the beast. She pulled her hand back and made it as large as she could. And then some. Maxing out everything about her next blow, One for All tore through her body, notifications of her Flex it Off Feat reducing the damage she was taking from her quirk.

Even if she wasn't taking damage, her entire body still hurt. It felt like her muscles were trying to pull themselves apart, especially in her hand as she popped her knuckles, the simple act of her knuckle popping sent a shockwave behind her that propelled her forward.

Fire breath seared and burned her, the damage was there but it was minimal.

She always wanted to go all out.

Her fist slammed into the Dragon's mouth, knocking out several large white teeth and quenching the flames in its mouth. On the far side of the cavern a fist shaped indent appeared easily larger than a football field. All the water in the hot springs was pushed to one side and Nejire screamed at the sudden blast of air.

Well, apparently that was it. So much for being a big scary.

Wait.

"What the hell?" Itsuka looked at the dragon. More specifically its red eyes as it glared at her. A challenging spark in its eyes made Itsuka smile at the creature.

Apparently, they were going to have a real fight!

A massive clawed fist slammed into her, knocking her away, but doing almost no damage.

"Alright you scaly bastard! Bring it the fuck on!" Itsuka shouted, landing into one of the pools. Her breasts grew just a bit again and she got a bit of that strength buff. It even healed her wounds.

The dragon was likewise submerged, the crack she had caused in its scales healing before her eyes.

It roared charging at her. And she roared right back.

XXXX

"Just fucking die!" Itsuka shouted, her giant fists slamming down onto the creature's head once again. The ground continued to shake as she rained down blow after blow upon it. It just wasn't taking damage and they'd been going for minutes now! She'd been trying to avoid getting hit by the water but now her breasts were larger than her whole body, making fighting awkward.

Mostly because the jerk of a dragon realized what the water did and started trying to splash her with it.

The more water she got hit with the harder it was to dodge. It was a unique but very annoying enrage mechanic. At some point she wasn't going to be able to dodge at all and her tits would just be too big to fight. Maybe at that point she could just smother the dragon in her cleavage.

Like that would work.

Still, as overpowered as she was, this dragon just wasn't taking any damage!

She needed more strength! Or maybe something that let her ignore armor!

Itsuka glared at the dragon. She wanted to punch it. But that was all she'd been doing for the past twenty minutes! There had to be some other way! Maybe she should get eaten? Or something else.

Wait. Where was Nejire?

"Nejire?" Itsuka looked around and didn't see her blue haired partner. Dammit. She didn't see her. She hadn't seen her in a while actually, she'd been too distracted by the stupid dragon trying to splash her. It wasn't like Nejire's blasts were doing anything. Not that Itsuka's punches were doing anything either.

This stupid dragon was just such a jerk! And it kept trying to splash her with water!

Itsuka looked around and tried to find Nejire but she couldn't see the girl. Mostly because the dragon was a jerk and her own giant tits.

Dammit!

She jumped and landed on something smooth and squishy. Huh?

She looked down and saw that the water near her was still clear but really really deep. But more importantly she was standing on a large, soft, pale, and slightly erotic island. She poked the island out of curiosity. She knew this feeling well. It was boob. Why was there an island sized boob?

A moan from behind her and she answered two questions with one answer. Why was there a boob island, and where was Nejire. Nejire was the boob island.

"Nejire!" Ituska turned and got splashed by the dragon again. Dammit! "What are you doing?"

"Huh?" Nejire looked up and smiled. "You were taking so long and I wasn't doing anything so I decided to see how big I could make my boobs! Turns out the more of me I soak the bigger I get! This is so fun! And they feel really nice! Oh, did you finish the dragon?"

"No." It splashed her again. "He's a jerk. Do you think you can stop making your boobs bigger and help?"

Nejire tilted her head to the side and shrugged. Why did she look so cute now? "Sure. Give me a second."

Nejire's breasts shook and Itsuka slipped, falling down into the deep water and being pulled under as the water rushed to replace the area where Nejire's breasts had once been. They were huge, and yet Nejire had no problem lifting them out of the water and even flying with them.

"Alright Mr. Dragon! It's my turn!" Nejire gave a slight stretch and yawned, making sure to show off just how flexible she was by casually bringing her leg up behind her head.

Itsuka could do nothing but look up in awe, despite the same thing currently happening to her bust.

Nejire shot forward, using her quirk from her building sized bust as giant turbine engines of spiral energy. "Ten Ton Titty Tackle!"

Nejire's comically large bust slammed into the dragon with enough force to send Itsuka up and out of the water. "No fucking way."

Itsuka was speechless as she watched the dragon actually take damage from that attack. Apparently its weakness wasn't getting punched, but boobs. God, she hated Izuku's quirk so much sometimes!

"Bountiful Bosom Bash!"

"Majestic Melon Mangling!"

"City-sized Coconut Crush!"

"Perky Power Push!"

"Sweater Puppy Slap!"

"I'm out of Boob attacks so just take this!"

With one last mighty mammary maiming Nejire brought her breasts and slapped the dragon's head between her breasts.

[You have cleared Peaks of Plenty! Congratulations.

Dungeon exit in 1H]

[You have been awarded Elixir of The Sexy Fox Girl.

Deliver this to Shoto Todoroki to complete the quest.

No. It doesn't taste like Soba]

"Woo!" Nejire cheered and bounced on her boobs. "You heard that Itsuka! We won! Now I think you owe me a favor or two of the sexy kind."

Itsuka looked at Nejire's still giant tits, her own obnoxiously large breasts, and then towards the still bound and gagged Menu.

"Why do I feel like I need bigger hands?"

AN: A 4k word long chapter to celebrate not only getting to chapter 30 of a story, to not only celebrate level up becoming my longest fic word wise, but to also celebrate getting to 4k followers. I honestly don't know what to say. Besides, Thank you. And now, get me into the the top 5 most followed bnha fics.

Also. You may now complain that for right now Nejire's tits are too big.