MHA-

Being five years his junior and having babysat a star-eyed Izuku who was fixated with her, Rumi Usagiyama chooses him later down the line as the source of her sexual fantasies based off of her long-hidden desire for him. Things come to a head however when her annual Estrous period comes in early during springtime, becoming frenzied and needing immediate relief with a sexual partner her mom arranges for Izuku to be the sole target in which she 'Chooses'. Things get real wild and rocky inside of the Rabbit Hero Mirko's apartment.

Work Text:

Workout Bunnies in Heat (Ara Ara, Deku-kun~)

My Hero Academia

By Azure/For Darkseid

Chapter One- Bunny Babysitter in Estrous

Ten Years Ago…..

At Age 15…..

Walking along the sidewalk and still wearing her school uniform from UA Academy, Rumi Usagiyama hummed delightfully to herself as she approached the apartment complex she called her home. She grinned widely with enthusiasm when thinking about babysitting young Izuku Midoriya again tonight. His mother had to work late at the shop where she was employed and offered to pay Rumi a good amount of money for a Friday night's shift. Apart from the money is a huge incentive for Rumi, Izuku's cuteness was the real reason she could never say 'No' to babysitting him. The little broccoli-head always looked up at Rumi with stars in his eyes, since he adored Heroes as much as she does, if not more. Izuku idolized Rumi personally, it was as if her dream of becoming a Top Pro Hero in the future resonated with the little boy and became the inspiration for him. Likewise, seeing him always run to her for a great big hug often made the girl's heart swell with joy, as well as other clandestine feelings she felt she needed to sort out for herself sometime soon. Either way, Izuku always held a special place in Rumi's heart even though she was five years older than him, she liked to think of herself as an unofficial big sister.

"Ah, finally here. Hope you're ready for a fun time, Izuku. He he he he.~" She grinned to herself manically then squatted down on her powerful legs so she could hop into the air in a burst of speed. Rumi ascended a few stories high until she grabbed onto the railing and pulled herself onto the balcony of the fourth floor, this was where she lived as a neighbor to the Midoriya residence. Rumi loved hopping wherever she goes, it made traveling much easier in her opinion, and much more thrilling. landed on the balcony leading to the Midoriya residence. Rumi loved to hop wherever she goes, it made traveling easier and much more thrilling.

The only known problem with her Quirk, being that of a high-powered Rabbit-like person, were the annual heat cycles she was warned about that would happen during Spring season. Usually Rumi dealt with them in her own way; by locking herself inside of her apartment and tending to her own needs using special toys. Sometimes it wasn't enough, however, and being at fifteen years old meant her libido would be going crazy the further she went along.

'Hoof, okay, best not to think about that stuff for right now. Focus on Izuku, and how you'll go about spending the day with him.' She said to herself in thought and knocked on the door to the Midoriya residence.

In a matter of seconds it opened up revealing a distraught Inko Midoriya, she was still slender and lovely as she ever was and wearing her office uniform for work.

"Oh! Mirko-chan, you're right on time! Thank goodness, I need to hurry and make it to the train station before I'm late for work." Inko let out a sigh of relief.

"No problem, Midoriya-san, always happy to take care of little Izuku. Tell me though, is he missing me more lately since I started going to UA?" She teased and Inko blushed and put a hand to her right cheek, nodding her head to the answer.

"Yes, he won't stop talking about how 'Amazing' you are and how he'd love to join the same school you're going to. But also, there are things I've seen him do and think about when he hit his tenth birthday just over a month ago….things that I believe involve you, Rumi-san. Let's just say puberty may have come early for my poor Izuku." Inko trailed off wearing a slight blush on her cheeks when thinking about the 'That' scene she walked in on a few days ago.

Rumi's white fluffy rabbit ears perked up with interest the moment she heard that, she was eager to hear more and was about to pry for information until Inko looked at her watch and panicked.

"Uaaah! Pardon me, I've got to hurry and get going, I'll be sure to pay you well when I get back. Thank you again for doing this for me on such short notice, Rumi-chan!" Inko said in a hustle as she grabbed her rolling suitcase carrier and tugged it along with her as she rushed about the door of her house leaving Rumi standing there in the doorway thinking about what she said just now.

'Is Izuku really having .naughty thoughts about me?~' Rumi asked herself in thought then felt her grin widen to manic lengths as a blush crept up on her face. She turned her head and saw the young ten-year old boy himself standing in the living room waving excitedly at her.

"Rumi-chan! You're here!" He cried out in joy making the rabbit girl's heart swell even more as she stepped into the house. The moment she closed the door she dropped her school bags and held out her arms ready to receive his usual heartfelt hugs, only this time a different feeling of 'Want' started to rise up inside of Rumi.

Izuku rushed over to the taller girl and gave her a great big hug making his little arms wrap tightly around her waist, he felt her hands come around his little body hugging him in return as though they were a pair of very close siblings. Rumi's long fluffy bunny ears wriggled in happiness as she held onto Izuku's shorter body with a warm smile on her face, but that smile soon turned seductive.. They remained like that for nearly a minute until the boy started to pull back from her, only to find that Rumi wasn't letting go just yet.

"Uh, R-Rumi-san?" Izuku meekly asked in his usual cute voice as he looked up at her from below, he saw an eerily hungry smile stretch onto Rumi's face with leering bedroom eyes gazing back into his more innocent and frightful ones. 'S-she looks like she wants to eat me alive, but why am I feeling that 'Thing' happening again because of it?'

Izuku asked himself when feeling his crotch suddenly becoming tighter underneath his little cargo shorts, suddenly he was sporting an erection from within his clothing making Rumi took notice of it almost immediately. Her amber eyes widened when she turned back to see the mass of Izuku's erectile tent poking out from between her thick muscular thighs. The moment she turned to look back at him, Izuku saw an even hungrier smile written on her face.

"Oh me, oh my, Izuku. Are you perhaps infatuated by me? Judging by what your mother has been saying about you, I've been the focus of all your fantasies,right?" She asked with a wide sultry grin and licked her tongue pervasively around her lips as she pulled Izuku over to the surface of one of the living room couches and sat him on it. He landed gently and saw his fifteen-year-old babysitter crawl over to him from across the table on all fours wearing that depraved hungry smile on her face still. She resembled something akin to a hungry predator ready to stalk and claim its prey.

"Uuuugh…….Rumi-san? What's with that look you're giving me?" Izuku asked somewhat fearfully until she reached the hem of his pants with her hands and gently dug her soft brown fingers into his shorts, ready to pull them off.

"Shhhh, just sit back, relax, and enjoy this, Izuku. You've always fancied me, haven't you? I can see it in your eyes, you know. Hehehe.~" She chuckled and licked her lips with her tongue again, keeping her bedroom gaze focused on Izuku's nerve-wracked face as he struggled to come up with an answer for her.

"W-w-well,I-I-I always thought you were amazing, almost as incredible as All-Might himself, a-a-and beautiful and confident too .I…admit I do kinda have a crush on you, Rumi-chan. Hope you won't think less of me if you decided to reject me or anything like tha-!" Izuku was silenced mid-sentence by Rumi's right index finger pressing firmly against his lips.

"Ah ah ah, say no more, Izuku. I am glad you told me that you this way about me, because now, I won't feel the least bit awful about what I'm about to do with you.~" She said in a husky seductive voice and pulled down his shorts revealing the sought-out treasure to her eyes while wearing a fiercely predatory smile on her face!

"*Gassspps!* Ooohhh……! *Huff….huff...huff*...what….was that dream just now?" Rumi asked herself as she sat up in her bed in a sweaty heap.

The caramel-skinned rabbit girl looked disheveled and sweaty for she was just now having a wonderful, if not utterly twisted, dream taking her back to her past when she was babysitting her young neighbor Izuku Midoriya. Of course, things didn't get wild like that at all between them that night, but it didn't make the lingering feeling of desire she had to go away anytime soon. Rumi was now twenty-five years old and one of the Top Pro Heroes in all of Japan, she was ranked number Fifth as 'Mirko' the Rabbit Hero. Right now, however, she was only wearing a white sports bra over her buxom chest and a pair of black cotton booty shorts over herself while seated in bed. These were typically her workout clothes, but she had fallen asleep the night before in them without bothering to change, they also help support her massive set of tits which measured at G-cup. Even then, her sports top barley held them up without her tits wanting to spill out or rip the piece of fabric apart, especially she was constantly tossing about in bed with wonton need for sexual relief.

She had sat up in her bed in a sweaty heap, still blushing madly after having such a vivid and naughty dream about her little admirer from far back. Before she could think any further on the feeling she felt the pent-up sexual desperation well up inside of her once more, causing her to tumble back onto the bed and clutch her lower body into her hands.

"Nghhhh! Ahhh….it's….it's happening again! Ggaahh! And much earlier too! Springtime came sooner than I thought, but why?!" She asked herself when feeling her sexual needs begin to overwhelm her body causing her sensitive womanhood to become highly sensitive to touch. Rumi was going through fits of sexual desperation and craving for one particular young man that elicited them inside her body. "Uuuggghhh! I-Izukuuuuu! Aaaaghh……! Oohh, I'm going to make this a busy morning alright,but first, I better call Mom and tell her to bring the chains!"

She rolled onto her side,still clutching her pelvis into her left hand running her fingers along her sensitive sex through her dampening booty shorts. Rumi grabbed her cell phone quickly off the nightstand next to her and dialed in her mother's phone number. It rang for a brief moment on the other side until it was picked, a womanly voice spoke out from the other end.

"Rin Usagiyama speaking. Eh? Rumi-chan? Why are you calling me so early in the morning, darling?" The woman asked over the phone and Rumi, still breathing laboriously as though she reached a fever pitch, managed to utter a few words while fantasizing about someone bigger and stronger dominating her shorter body like a bitch in heat. It was a common fantasy she had and a shameless kink. She needed somebody stronger than making her submit to them via sexual stimulation in order to get herself off.

"M-Mother! It's happening again! Much earlier this time! I-I need to get some things back from you so I can hole myself up in my apartment until it's all over. The locks, the chains, everything! I'm going crazy right now!" She howled into the phone, making the woman's face on the other end look startled until a sly smirk crept up on it.

"Alright, Rumi, calm down. I'll arrange for some 'Help' to be delivered your way very soon, perhaps in about an hour or so, just hang in there and stay inside your apartment." The woman's voice said soothingly making Rumi feel a bit calmer as she frenziedly drove a pair of fingers into her drooling slit, finger-fucking herself wildly while grinding her pelvis left to right along the bed surface in a frenzy.

"O-kay! J-Just hurry up! Nngghhh! I think I'm going to have to make do with that special Custom Vibrator I got from Hatsume industries until then, but I don't think even that'll be enough. Gaaagghh!" Rumi added before roaring out in stimulation and frustrated sexual need. She heard a whimsical chuckle coming from her mother's end of the phone before the line cut leaving her all alone on the bed in a sweaty disheveled heap.

Putting the phone down and now placing both her arms down around her voluptuously toned body, Rumi slid both her hands down into her panties from underneath her booty shorts and started furiously stroking the insides of her soft sensitive pussy to thoughts of a certain broccoli-haired boy she could never stop thinking about.

"Oooohhhhh! Izukkuuuuu!~" She cried out loudly to herself as she started bouncing off the surface of her bed making her toned brown ass sway up,down, and around into the air while making loud gasping noises with a distressed face.

Elsewhere…..

Dialing in a new number once her daughter hung up, Rin Usagiyama waited for the other end to connect leading to the voice of one Inko Midoriya picking up and answering her call.

"Hello? Oh, Rin-san! How are you doing? I wasn't expecting a call from you this early in the morning." Inko said while keeping the phone at her side while she diced up a pair of vegetables to serve for dinner.

"Inko, it's time.~ 'Operation Grandchildren' is finally underway, Rumi's estrous period had just kicked in, and it was much earlier than usual. I have assumed it was because she's older now and likely having her biological clock ticking." Rin explained shocking Inko entirely to the point she nearly dropped her phone into the soup.

"Oh my! Already? That's amazing, I had no idea that could even happen so very quickly. Well, don't you worry about me, I know my part of the plan.~" Inko let out while blushing up a storm and looking over in the direction of one of her family pictures. It was a photograph of Izuku having graduated from UA and standing next to a proud-looking Inko wearing his hero outfit with a smile, he was looking as incredibly buff and impressive just like his mentor All Might himself was back in his heyday. Inko was honestly very proud of him and happy that he had finally accomplished his dream, but now it was high-time for him and Rumi to finally be a couple, just as Inko and Rin always thought they would be. The two mothers would certainly help in making it happen.

"Alrighty then, I'll go ahead and contact Izuku so he can stop by and 'Check' on Rumi-chan for you, Rin. Given how her body works during this estrous period of hers, I can safely say that Izuku's presence will likely have the intended effect of making her throw herself at him. Most of his fangirls tend to do that anyway, you know." Inko explained and Rin nodded in agreement on the other line.

"I agree wholeheartedly, Inko. It is about that time when Rumi should start thinking about having children anyways. Besides, I've always rooted for your son to win her heart,which I'm sure he has already done ever since they grew up together. You put in the call and summon your Pro Hero Son over to Rumi's place right away before she tuckers herself out masturbating, or heaven forbid goes on a rampage. That last part is far more likely than you'd think by the way." Rin said to her and Inko chuckled before hanging up.

Inko continued dicing the vegetables then scooped them together and tossed them into the soup before she dialed in Izuku's cell phone number to call him. She hoped he had just finished his morning workout routine and was on his way back to his place. Inko had to be quick and time it just right in calling him. No doubt the scent and stench of a sweaty muscle man like Izuku would likely throw Rumi into a sexual frenzy when he arrives.

"Ah, Ohayo, Izuku. I hope you're not busy and have just finished your workout because I need you to run a very special errand for me. Remember your friend, Rumi-chan?~" Inko baited with a sly smile on her face.

After receiving a phone call from his mother earlier that morning, Izuku Midoriya, now at the top of all the Pro Heroes in Japan and Hero Society, was making his way over to the block where Rumi's suite was located. He had come a long way since he was shrimpy fanboy that was Quirkless, now Izuku was the Number Hero and current Symbol of Peace as well the longtime winner of Most Sexually attractive Hero in all known popularity polls. He casually made his way down his old street holding a bag of 'Necessities' given to him by Rumi's mother Rin. He had long since outgrown his shrimpy appearance and became a walking epitome of masculine excellence and raw power. His height was almost the same as the prime level of All-Might back in the day, his figure was that of a professional bodybuilder,which was perfect to continuously house the explosive power of One For All at a hundred percent at all times, even when he doesn't typically need to go beyond five percent during Hero Work.

Izuku still had his trademark broccoli-hair which was now a tad shorter and with a somewhat spiky appearance, with the addition of two small bladed bangs down his forehead in homage to All-Might himself. He tried not to copy his Idol too much after all. These days women everywhere swoon whenever seeing him pass by, so he had to play it safe and hide his appearance at times whenever in public, lest he get swarmed by female fans who throw their panties and try to flash him sets of tits, not that he minded though..

"Alright, I'm getting close now, it's been such a long time since I lived here in this block. It feels nostalgic, I wonder if Rumi-chan is doing alright." He said to himself in a more masculine voice and wearing a confident smile on his face as he crossed the next walkway.

He clutched the large duffel bag of 'Necessities' he had picked up from Rin Usagiyama earlier that day, she said it was important that Izuku get them to Rumi as fast as possible for she was 'Unwell' and designated him the 'Cure' to her ongoing situation. Izuku wondered what she meant exactly and why Rumi's mother kept the details so vague, he also wondered why they called him personally to do this delivery when anyone else, like a delivery drone, could get these to her much faster.

Alas, he shrugged, not really caring despite finding it suspicious. He had used his enhanced OFA-powered speed to make his way across town from his HQ in an instant, now, he was just taking his time in enjoying his old neighborhood.

'And she just kept smiling at me a lot too, Rin-san has always been kind and loving to me, kinda like a second mother, but she was definitely up to something when I paid her a visit. Oh well, what's important right now is seeing how 'Mirko' of the Top Five Pro Heroes is doing. I do miss Rumi-chan a lot, it's been a while since I actually talked to her.~' He thought to himself and rounded the corner till he came to the building where she lived. Izuku squatted down on his legs and performed a high-powered jump that carried him up the stories of the apartment complex until he grabbed onto the railing pulling himself onto the walkway from the side, arriving on the fourth floor where Rumi's apartment was.

Some habits of hers had rubbed off on him after all..

Walking over to the door Izuku rapped a knuckle on it several times before waiting to hear a response. He stood there waiting while wearing a stylish dark blue men's workout T-shirt over his chiseled top, it was still being stretched out to its limit by his raw powerful muscles. Down below, he was wearing a pair of simplistic black workout pants that went well with the rest of his clothing, they were all custom-made to stretch around his body when or if he ever had to use his power during casual time. Right now, Izuku was hoping to catch up with his old babysitter and reconnect with her in a meaningful way. He had yet to really socialize with other Pro heroes ever since ascending to Number One Rank these days.

Back behind the door….

Huffing and stomping about in bare bunny feet, Rumi Usagiyama trudged her way over to answer the door. She dreaded who it might be since her hormones were still going crazy. Her panties were soaked and filthy with her juices after masturbating so much with that special Mega Vibrator she purchased from Hatsume industries too. Her sports top hung off of her chest leaving some of her cleavage utterly exposed, which included a bit of her right nipple peeking out to whoever the lucky person was that she's about to see. Rumi was certainly not in the best of shape right now since she was still in estrous and still practically feral with mating season heat, yet she was drawn to that faint masculine scent coming from behind the door of her house. She found it oddly familiar and very inviting, making her want to risk raping whoever it was simply out of pent-up sexual need, but Rumi had to be careful who it was. The last thing she wanted was to be pregnant from somebody she may not care about in the slightest, but she had a feeling this guest was someone she knew quite well.

"Hang on! I'm coming! Hold your horses already!" She screamed out loud and stalked over to the door, undoing the locks then opening it to reveal the jaw-dropping sight of Prime Beefcake Izuku Midoriya standing there in the doorway flashing his ever-so-innocent smile that made her heart swell up.

"Rumi-chan! You're here!~ Hehehe!" He greeted in his old childish way and flashed the duffel bag of 'Goods' she had called her mother about earlier. Rumi's dark red eyes zoomed towards the bag then focused back on Izuku's smiling face one hundred percent.

"I-Izuku?! I-It's you!" She screeched out in slight panic as a bright red blush came across her face. Suddenly she was now feeling more 'Normal' and composed compared to earlier and straightened up her posture despite still showing him her messy state.

"My mother called me and told me that your Mother wanted me to bring these to you-uuuhhh…..!" He trailed off when his eyes caught sight of her tank top slipping off her chest exposing some of her dark pink nipple from her right breast. Izuku's face lit up in red as he stared like an idiot at his longtime friend's exposed assets.

Rumi, on the other hand, had a different reaction.

"Well if it isn't my little broccoli-head, all grown up and looking like a total Hunk. You look amazing though, but then again you're the Top Hero in all of Japan eh? It's been ages...and….just look at you!" She gushed with a wide smile and twiddled a lock of her snow-white hair around her left thumb.

She was feeling the 'Need' arise quickly inside of her loins just by seeing him and whiffing his 'scent', the latter of him was triggering her sexual desire to the point a manic grin spread across her face. Rumi pivoted her hips left to right grinding her sexually toned thighs together due to feeling 'That' need come up like a furnace from inside of her womb. She was more than ready to allow conception to occur, and more so than anybody to have it with Izuku Midoriya. Once a shrimpy young fanboy she used to take care of on a lonely Friday night, now Prime Hero of Heroes with a body that made women everywhere spank it to him. Rumi was certainly feeling that feeling right now and slowly swiping her tongue across her lips the longer she looked at him. One more whiff of his overly masculine scent being inhaled through her nostrils was enough to make her rabbit ears curl upwards together in the shape of heart, making her target Izuku with the intent of breeding with. Her eyes zeroed in on his confused-looking face and flashed him a depraved smile wrought with utter sexual desire, seeing her eye him like that made him a little bit scared yet incredibly aroused. That was when all Hell broke loose.

"Uuuhh, Rumi-chan? Are you feeling alright? Your Mother told me you were 'unwell' due to some kind of 'period' due to your physiology, but she was really vague on what it might be--!!"

Izuku was halted from speaking any further the moment Rumi grabbed him by the collar of his shirt and hauled him into her apartment, shutting the door behind him in a hard slam! With a great feat of strength and hunger-ridden look on her face, Rumi tossed Izuku onto the nearest couch and locked all the locks on her door before strapping the chains he brought her out of the duffle bag across the entryway itself. There was no escape now.

"Oooof! R-Rumi-chan?!" Izuku let out in shock as he saw a now feral Rumi sauntering over to him with hips swaying left and right highlighting her voluptuous curves and thick muscular thighs. He will admit to greatly enjoying how she looked in action when wearing her tight-fitting one-piece costume into battle.

Rumi looked at him with a hungry smile on her face and a pair of depraved eyes focusing on his face, then his crotch. She wound up licking her lips with her tongue again as she crawled over to him like a predatory animal, one that was preparing to 'Eat' him alive. She placed herself over his beefy body with soft strong hands gently running themselves along his chest in an affectionate manner. The woman was reminded of her earlier dream where this exact same scenario played out with her younger self and a young Shota-sized Izuku.

She wanted to laugh at the poetic irony it represented, but she didn't want to think it was Destiny or some such nonsense. She simply chose Izuku over everybody else in the entire world. Needless to say, seeing her highly crazed face smiling at him like that made Izuku's crotch stiffen up underneath his workout pants, making a massive bulge protrude from underneath the fabric. Rumi caught sight of this immediately and looked back to see it coming out from between her thick muscular legs.She smiled lecherously and turned back to bring herself closer to his face, holding his cheeks into her smooth brown hands in the process.

"Oh me, oh my, Izuku. Are you perhaps getting turned on by me? Maybe you did have a crush on me from way back when I was babysitting you, am I right?" She guessed making Izuku flinch in reaction before slowly nodding 'Yes' as his answer. He was feeling compelled to bring his hands up around her supple perfectly toned ass and grab the woman right now. Something about seeing her so feral and beautiful made his insides quake with lust for his longtime crush.

"Rumi-chan….I….yes! I did always have a crush on you from way back when, everything about you motivated me into trying my hardest, even before I 'Unlocked' my Quirk. I pushed myself to the brink and went beyond into becoming a hero after you inspired me to join UA after getting into it. I reached greater heights because of you, part of my inspiration may have come from All-Might, but I'm only a hero thanks to you always supporting me in the years that followed. Plus, I'll admit to...maybe having fantasized about you plenty of times in many lewd scenarios. Some of them include wearing a Bunny Waitress outfit.." He confessed and this sealed the deal in Rumi's manic-looking eyes.

"Ooohhh! You know just what to say to get my heart pumping Midoriya. Come here!!~" Rumi cried out and wrapped her muscular arms around his neck tightly then pulled him onto her lips for a fierce steamy kiss ripe with tongue action, taking Izuku completely by surprise.

His eyes went wide in wonder and he questioned whether or not this was a dream until he closed them tight, bringing his arms to wrap around Rumi's waist and hug her toned body tight. She deepened the kiss, peeled apart Izuku's lips so she could shove her tongue down his mouth in a lip-lock of pure ferocity. She was kissing him aggressively and cleaning out his tonsils with glee by using her tongue, this rabbit was completely frenzied with desire for Izuku Midoriya right now.

"Mmmmhhhh! *Slllrrpp...ssllllpp….schupp!* Hmmm!~" She growled happily inside of his mouth, making sure her breasts pressed up against his chest while she was twirling her tongue around inside of his throat in soft circles. She was at first, attempting to dominate him and claim superiority, that was until Izuku fought. To her surprise and delight, Izuku's tongue play skills were just as fierce as her own and making her tongue curl backward as he rolled his all over hers in a steamy exchange. Rumi honestly felt her heart racing and pupils dilated with little hearts inside of them while she held firmly onto Izuku's neck.

He, in turn, hugged his broad muscular arms around her waist tightly and pulled himself up off the couch in a seated upright position taking Rumi with him as she sat straddling his waist. Her legs settled themselves beside his hips curling into a position that looked to be a cowgirl arrangement, she never let go of their kiss and started feeling Izuku take control of it entirely. He started kissing her back just as fiercely, overtaking her tongue as though he were claiming superiority, thereby turning her on even more. Their tongues meshed languidly together between each other's mouths openly with Rumi's own being rolled back by Izuku. She was loving this assertive side of him more every second. He held her sweaty frame firmly against his body and felt Rumi now grinding her voluptuous hips along his crotch, making him feel the groove of her smooth pelvis rolling up along his growing bulge. She felt him whimper and took that moment to grab the back of his head into her fingers, focusing her energy into rolling her tongue over his own to reclaim dominance, but really, she just wanted to kiss him like this for eternity right now.

"Mmmhmmm!~ *Izukuuuu!*" She moaned into his mouth amidst the tongue-sucking frenzy, their exchange continued for several more minutes until they eventually pulled each other off leaving their faces flustered and messy with saliva. Rumi looked incredibly happy right to Izuku's eyes right at this very second, it was a sweet demure side of her he never saw until now. But, soon enough her eyes leered hungrily at him once more and she ran her tongue around her lips cleaning off his saliva from it.

"*Huff...huff….huff…* Rumi-chan...that was amazing!~" Izuku breathed out with a fierce blush on his face.

He leaned back against the cushion of her couch with one hand propping himself upright from behind while the other was keeping firm hold around Rumi's waist. He admired her toned abs and her sexually curvaceous feminine form ripe with muscle curling up against his own body. There wasn't anything he didn't love about this battle-crazy woman who lived life on the edge. She was confident, brazen, had luscious large breasts barely contained by her top, and baby-bearing hips that screamed 'Breed me' to Izuku's face. Not to mention she had legs for days in spite of her height, to top it all off her manic grin was constantly turning him the longer she stared into his eyes. Izuku believes he just fell in love with her all over again.

"Yeah…*Huff...huff* oh, believe me, Izuku. I'm just getting started. Hehehe~" She snickered and leaned back slightly to allow herself more space. Rumi quickly brought her hands to the bottom of the top of her sport bra and pulled it up over herself revealing her massive tits to Izuku's starstruck face. He saw those magnificent G-cup sized melons spill out, bouncing slightly with every movement her body made. "*Aaahh! Oohh that feels so much better, these babies have been getting super sensitive and uncomfortable today, you know. So….. what do you think, my little Broccoli-head? Feel like grabbing them and playing with the beach balls?" Rumi asked when seeing Izuku's lovestruck face when admiring her chest. She nearly wanted to laugh but was too caught up in frenzied lust to bother doing that. Still, she was glad he was enjoying them.

Izuku looked at Rumi's lovely titties with a hint of drool coming out the sides of his lips. There were stars in his eyes and he brought his hands over slowly ready to grab onto them. Snickering again, Rumi swiftly grabbed his wrists and guided those perfect strong hands over to her chest allowing him to grab each of her pendulous titties into his fingers squeezing them tightly and making her shudder at the highly sensitive contact.

"Aaahhhh!~ Ooohhh...your hands are so firm and strong, yet still soft to the touch. Mmhhh! Play with them if you want, Izu-kun. They're all yours!~" She giggled and saw a fire light up in his green eyes as he obliged her request and went to town on her titties, squeezing them.

Rumi's cheeks lit up in red as she felt his strong fingers needing her breasts, making her melt into putty at his touch. There was something about Izuku's hands that just felt like ambrosia to her, he touched every sensitive place, prodded nearly every erogenous spot around her melons causing her pelvis to feverishly roll up along his crotch, feeling his bulge increasing in size. She was horny beyond all limitations right now and wanted him to strip himself of all his clothing and fuck her already!

"Mmngghh! Aaaggghhh! Ugh….take off your clothes already and screw me already, Izuku!" She howled out making him let go of her tits so that she could hop off of his lap to stand by the couch.

Izuku was a little dumbfounded till he saw her slide down her booty shorts in front of his eyes, Rumi seductively wriggled herself out of them with a teasing smile until they came down around her kneecaps exposing her glistening caramel-colored sex to his face.

"Hnhh!...Rumi-chan….you're so beautiful!" He growled when seeing her mons up close as she stepped out of her shorts entirely. She had a light tuft of fluffy white pubic hair below her navel that went perfectly with her fluffy rabbit tail behind. She didn't want to strut her body, no matter how much she adored Izuku's reaction, but she was in a rush to mate and thus, reached for the man's shirt before ripping it off!

*Rrriiiipppppp!*

"H-hey!" Izuku let out as his bare chest became exposed, showing Rumi his broad muscular pecs making her even hotter under the collar. She quickly kissed around his nipples for a bit, running her tongue along his muscular body like it was worship, and then reached down between Izuku's legs cupping his gigantic bulge now pushing into his pants to the point it looked like he was hiding a massive object under there.

"Oh me, oh my, Izu-kun, what's this you have packing down here? It feels very angry, so why not let it out and show me?" She teased and pulled down his workout pants, with boxers included, making his mammoth-sized fourteen-inch cock sprung out nearly smacking her in the face. Rumi held her cheeks into her hands as her rabbit ears curled together in a long heart-shaped arch once again the moment she saw it. "Holy cow! You've been holding out on me, Izuku! Ohhhh….it is even bigger than the bitch-breaker class Vibrator I bought from Hatsume's company." She shuddered and Izuku simply shrugged modestly with a blush on his face.

"Heh, well, I'm glad you like it," Izuku commented with a chuckle and then saw the shadow of Rumi's body obscuring the source of light in the living room. He looked up to see her already feral smile look even more depraved with unhidden lust, Rumi's rabbit ears were twitching excitedly, her cottontail was twitching as well. All of her body was excited and ready for the mating season to begin, and Izuku was going to be her chosen mate, in both heart and body.

She hunched over his waist bending her thick muscular legs around his sides and planting them in the couch surface ready to fuck him. Izuku could feel the heat from her pussy as it hovered over the head of his shaft a bit while Rumi placed her hands down upon his chest, staring him in the eyes with a wild smile before leaning down to quickly kiss him on the lips. Izuku returned it in full force leading to deep, yet not overly erotic, the exchange between the two. Rumi cupped the side of his face while doing so and continued making out with him for about a minute until she pulled off. She simply said this.

"You're going to fuck me, Izuku. And You're not stopping until I say so.~" She said before slamming herself down upon his waist and sheathing the head of his gargantuan member into her sopping folds making herself writhe in euphoria as she felt her insides spreading out around it.

"Aaaaahhhh!~ Yessss!~ Hngghhhh!~" She cried out in ecstasy with tongue spilling out of her mouth and ears twitching excitedly while Izuku strained to endure the feeling of her tightness wrapping around his length without cumming.

The Proud Number One Pro Hero winced in absolute pleasure as he felt the slick slimy insides of Rumi Usagiyama's pussy wrap tightly around every thick inch of his length now burrowing into her cervix. It was really his first time, being that Izuku was the type to wait for the right girl, or rather wait for Rumi, and it turns that was the right call since feeling her sex slide onto his meat like a living condom made it all worth it. He growled with clenched teeth and grabbed onto her firm buttocks with both hands, feeling Rumi shudder some more as she started humping herself up and down onto his waist fucking herself on him in cowgirl style fucking.

The frames of the couch started creaking along with their movement, flesh-slapping noises now filled the air along with Rumi's moaning. Her tits swayed about wildly in front of Izuku's face until he latched his hungry mouth right onto her right nipple squeezing it between his lips and making her moan even louder.

"Aaaaghh….Ohhhhh Izuku! Ooh How I have been waiting for this! Yesss! Mmnnghh!" She howled and bounced her powerful pelvic region on top of his body more rapidly, making her internal muscles clench tightly around his dick as it speared into her cervix over and over again. It was partially painful, but mostly absolute bliss and Rumi couldn't get enough of Izuku's meat pounding on the door to her womb.

Her brown buttocks jiggled constantly as she slid herself on him again and again, feeling her insides gush as they wrapped tightly around his penis to where her pubic bone meshed with his crotch. She felt Izuku squeezing down on her buttocks with his hands while sucking hungrily on her right tit like he were baby, all of this was making Rumi crazier with sexual pleasure than she had already been. None of what the 'Bitchbreaker' vibrator she brought mattered in comparison to this, at all. She kept her hands steady along his chest, bouncing herself up and down tirelessly on his waist and feeling Izuku's thick member repeatedly pummeling her cervix while it kissed the head. She loved wild and rough sex and was glad she only ever worked with sex toys until she decided to find someone who was worthy. Izuku was that person, not just because he was the number one Hero, but because he had always been worth in Rumi's eyes and she had never confronted those feelings until today.

Suddenly she was glad it was Heat season for her already, otherwise, she wouldn't have gotten to enjoy this.

"Aahh..aahh...aahhh..aahhh...aahhh..uuh...uh..uh..ahh! Izuku! Nngghhh!" She cried out and began rolling her waist forward than backward after settling her legs around his thighs in a more comfortable position. She was still frenziedly fucking herself on him, but in more swifter stance with her rolling her body along his crotch in undeterred passion.

"Mmmhhh! Rumi-chan….nnghhh! This is so amazing…! You're incredible, and I think you're even flexing muscle control down between your legs around me." Izuku grunted as he let go of her breast and proceeded to buck his pelvis up into her body making her 'Hop' up and down on him while they moved together in a mutual frenzy.

"Heheheh, you noticed, eh? Yeah, well they don't call me the 'Rabbit' Hero for nothing. Powerful legs for days is just part of the package. I'm going to milk all your manjuice out of you, Izuku, and you're going to like it.~" She countered and planted her hands down upon his pecs, steadying herself so that she could feverishly roll her lower body along Izuku's waist with blinding speed.

She noticed his reaction with a harsh growl of pleasure and clutched her brown buns tightly as she rode him like a bucking bronco while wearing a delirious smile on her face. The air filled with Rumi and Izuku's moans, constantly coming out in loud ragged breaths of pure elation. Rumi slammed her body down onto him again, making her cheeks shake and quake as she repeatedly swallowed up Izuku's massive Bitch-breaking dick into her core. She was overcome with Estrous heat right now, even so, she'd still do this with him regardless. She loved him that much and the sex was just that good.

Clawing her fingernails along his pecs a bit she continued gyrating her pelvis around his cock feeling it ready to burst at any given moment. Rumi herself was nearing the end of her 'First Bout' as she likes to call it with the ever-increasing need to contract her pussy tightly around his meat and milk him dry. Her body heaved and rolled some more onto his waist, feeling Izuku growl with up-and-coming pleasure until she leaned down over his body, raising her hips up high then slamming them down onto his waist in repeated fashion!

"Uunnhh! Aahh….aahh….ing close, Rumi-chan!~" He announced with hands still gripping her ass tightly making her whimper into his neck.

The caramel-colored woman lifted herself up a bit to meet Izuku's heated gaze, then smiled before wrapping her lips around his again resulting in another more eloquent tongue-swapping kiss session. They closed their eyes and moaned into each other's mouths, savoring the sensation of embrace while Rumi was getting ready to cum along with Izuku. Her cervix had opened up allowing some of his cock to go through and push into her very womb. It was a sensation she couldn't really describe aside from calling it 'Heaven', the lips of her cervix wrapped tightly around Izuku's cockhead, kissing it as she was fast approaching climax while ready to accept his seed inside.

"Mmnnghhh! Mhhnnhhhh!~*Pop!* Ahhh….here it is! Izukuuuuuu!~" She cried out after pulling up from his face.

Rumi's body undulated wildly atop of him, making her cervix clamp down rightly around his member over and over again in repeated coitus. Her body shivered uncontrollably as she felt Izuku's member swell up like a balloon until she heard him utter a cry of release with his own ejaculation following!

"Aaaahhh……! I'm cumming!~" He announced bucking his pelvis upwards into her sex making sure everything was wrapped inside of Rumi's tight hot pussy as he sent thick splashes of molten white sperm directly into her womb!

At feeling his seed enter her body, Rumi shuddered explicitly and wound up squeezing more out of Izuku's elephant trunk of a penis. Together they heaved languidly back and forth atop each other with Rumi feeling a bit bloated due to all the seed now resting inside of her stuffed womb. There was no doubt about it now that she was pregnant with future Midoriya offspring. Once they finished cumming together she finally let out a sigh of relief shuddered in post-coital bliss on top of him. There, Izuku got a whiff of her musky yet alluring feminine scent, combined with the smell of her natural fragrance mixed with sweat. Suddenly his member was returning to life quickly after it had popped out of Rumi's sopping pussy after leaving a thick trail of sperm gushing out of it.

"Mmhhhm, I don't suppose you'll be up for a bonus round, Izu-kun?" She purred and sat upon his waist with a hopeful leer directed into his eyes. She saw a newly confident smile on his face as his body was suddenly engulfed in a luminescent glow of green energy with red veins materializing around the surface of his skin.

Rumi's smile was wiped clean off as she saw Izuku channeling his most intimidating Quirk power, she got lifted back off of his body entirely and onto the couch leaving her legs spread wide apart in the sky and held firmly by his hands. She looked above to see him smiling down at her as he got into position standing on his two feet and placing himself directly above her upturned body ready to fuck. This was called the 'Mating Press' according to Rumi's knowledge. Izuku's massive thick rod stuck out between her legs like it were a tower of Babel, she saw that it too was glowing with energy and pulsating with anger and rage.

"I-Izuku?" She asked almost fearfully until she felt the thrill of someone far stronger exuding an air of dominance over her body. Rumi was getting excited all over again and saw him grab both of her long legs and keep them apart.

"Now, I'm getting serious, Rumi-chan. I'm going to pound you full blast while using my Quirk in Full Cowling mode, at a One Hundred percent! You're going to beg me to stop, after getting a whiff of your smell I'm feeling the need to go crazy myself on your body right now." Izuku explained with a confident grin and channeled the surge of awe-inspiring power throughout his body making it glow with jolts of electrical energy cracking about all over the surface of his body.

Rumi was honestly excited about this, despite that she feared getting her will and mind broken in by the Number One Hero in Japan, she also had a huge fetish for someone stronger than dominating her shorter body and making her scream. Izuku truly was the one for her, no doubts about it.

"Hoooh, I'm shaking, take me already, you big-dicked bastard. I'm begging for it!" She challenged and Izuku pivoted his pelvis and lined up his massive veiny prick to her dripping cum-filled slot. With a hard shove of his pelvis, he pushed right into her pussy with a tremendous force making the couch crumble in its fixtures until the legs of wood shattered!

"Uuaaaagghhhhhh!~" She cried out in ecstasy and pain as she felt Izuku's cock plunge into her body like that, she felt the power in his member and shuddered blissfully for he had pushed through her cervix again and landed inside of her womb. Rumi was feeling her pussy squeezing weakly around his prick until Izuku bent himself over her body taking her in a Mating Press style fucking.

His feet planted themselves around her hips bending back her legs to where they were sticking up in the air by her very head. It was a good flexible she was flexible alright. Rumi's eyes were wide and distant after having been penetrated in such a rough way, she said nothing at all and instead, dropped her mouth open letting her tongue spill out giving her a depraved smile on her face.

"Here I go." Izuku grunted, still bristling with amazing power as he started slamming his pelvis into Rumi's upturned buttocks like a living jackhammer.

The loud slaps of flesh that normally would come out, aired as sounds of impact making it seem like Izuku was a living Superman pounding a very normal woman. His body started heaving down atop of Rumi's frame, diligently fucking her with powerful thrusts that made her pussy squelch with every insertion. The loud rutting noises came out quickly and started sounding off even faster as he rutted rapidly into her body, making her gasp and howl with every push.

"OOoaaaghhhh YESSS! Fucck me! Izuku! Break me into your slut and fill me full of your babies! I need it!~" Rumi cried out with an utterly delirious expression as she brought her arms up around Izuku's neck, embracing him entirely as he slammed himself down onto her couch making it crumble apart as the force of their fucking became something akin to an Earthquake!

"Mhh...mhh..mhh..mhmm..mhmm..mmnnnghh! Aaahhhh...Rumi-chan!~" Izuku growled as he held his arm around her broad shoulders making her latch onto his lips once again and swallowing his tongue into her mouth with gusto. He could see little hearts in her irises while her bunny ears curled into a heart shape once again, after seeing those two signs, Izuku felt it was safe to assume that she loved him and decided to confess after this romp.

Meanwhile, his pelvis rhythmically pumped into her frame over and over again making her legs sway helplessly in the air, Rumi moaned and huffed loudly while wearing a delirious face comprised of nothing but an absolute pleasure. Izuku held her form firmly against the couch cushion bucking tirelessly into her sex as though her insides were little more than a living gooey condom for him. He growled in pleasure at the feeling of Rumi's cervix repeatedly squeezing down tightly on his length in reaction to his powered thrusts. He was still careful enough not to hurt her since this power can send foes literally into the stratosphere.

Pounding his pelvis into her some more and seeing her tossed her head around wildly in nonstop euphoria, Izuku continued fucking Rumi against the couch wildly enjoying the feeling of her sex swallowing up his meat till it made a protrusion into her muscular abdomen. He groaned and moaned constantly without actually feeling tired, his waist pushed into Rumi's sensitive pussy, again and again, feeling her insides coil tightly around him as he ravaged her insides tirelessly for an untold amount of time. Over and over again he slid his monster inside of snatch, feeling her cervix contract around him while her legs shivered high into the air. Rumi was screamer alright, she held onto Izuku's neck while shouting constantly for him to knock her up, all while still having her rabbit curled into a heart-shaped.

Together their bodies heaved into the surface of her now destroyed couch, rolling into each other well into the afternoon until Izuku felt Rumi climax for the tenth time around his length making him finally succumb to orgasm and slam himself into her one last in mutual climax with balls slapping against her ass as they stretched then bloated before sending a thick package of cum directly into her pussy!

"Aaaggghhh! Izzukkuuuuu!~" She cried out and shuddered violently underneath his body with toes curling tight and face scrunching up in mind-broken euphoria.

Rumi, shuddered and exploded underneath him over and over again milking him for a nearly endless amount of cum now stuffing her womb to the point she looked several months pregnant already. Her body twitched spastically a few times with her insides churning Izuku's dick for what felt like minutes of post-coital ecstasy.

"Uuuhhh!...uhh!...aaahh….oohhhh…...Izuku….I love you.~" Rumi blurted out softly with a peaceful smile on her face as she had finally ridden out her estrous frenzy with the boy she held dear the absolutely most in the world.

Izuku, upon hearing that confession, felt his heart soften immeasurably as he shifted their positions so they could lay down together. Rumi looked positively tuckered out with chest heaving shapely and ears twitching as she curled up on his chest about to pass out. A blissful smile was on her face as she cradled her arms around Izuku, feeling the warmth of his body make her comfortable while she drifted off to sleep.

"Heh, didn't even wait for me to say it back to her, but that's alright. I'll wait until she wakes up, if she wakes up that is." Izuku said while wrapping his arms around her naked brown body while thick globs of sperm oozed out of her gaping pussy en masse.

Inside of Rumi's body dozens of Midoriya swimmers towards one of Rumi's eggs ready to implant inside of her and sire life. Only difference is, with her being part rabbit this meant that more than one bundle of joy would come out of it, perhaps much more.

Sometime later….

Inko got up from the couch and went over to the kitchen ready to make herself dinner for the evening, being that she kept herself slim and in-shape the woman had to make sure all her food was healthy for her body. She didn't want to let herself go again. When she arrived at the kitchen counter she saw that her phone buzzed again showing that she received a text message, picking it up she clicked on who the sender might be and smiled brightly when seeing it was from Izuku.

'There's a picture attached, I wonder if it's another one of Izuku and Rumi's couple outings during hero work.' Inko thought and downloaded the attachment, only to find the jaw-dropping surprise of an image bearing a positive marked pregnancy test being held by a smug-looking Rumi Usagiyama, soon to be Midoriya. "I'd better call Rin-san and tell her Operation Grandchildren was a resounding success!" Inko cried out in happiness, secretly looking forward to being a grandmother now.

End of Chapter/Story?

To be continued….?