A/N - Ok, first off, this one is going to be a bit more intense and get into flavors of smut I'm not normally a fan of. I probably won't do more like this one in the future.

Secondly, there won't be any more mothers of main characters joining the harem. Unfortunately that also includes Nana. I know some of you guys want her but story is as important to me as smut and I can't find a way to add her that I'm satisfied with. She's just gonna be the hyperactive grandma of the family.

Also, as people have been pointing out, I'm terrible at judging cup sizes from just pictures that don't always have the same dimensions, so from this point forward I'm not going to give specific sizes anymore. I'll just give a general size and let your imaginations do the rest.

And that all I had to say. Enjoy.

Mitsuki could feel Izuku's hot breath on her neck as he panted and stared into her eyes with fury as he pinned her to the wall.

"Izu-"

"SHUT UP!" Izuku cut her off before tossing her to the mats covering that part of the floor.

Mitsuki yelped in shock and pain as she landed and Izuku straddled her, pinning her wrists to the ground as he did so. His grip tight enough to bruise and his stare intense enough to burn.

"You… you raised him to be like that!… You let him torment me for years and never said a thing!" Izuku practically screamed down at Mitsuki as his manhood throbbed against her stomach.

The bombshell milf moaned in a combination of pleasure and pain under Izuku.

"I-I'm sorry Izuku… I didn't-"

"I SAID SHUT UP BITCH!" Izuku yelled as he pushed her head into the mat.

"You're going to take everything… everything you and your bastard son deserve!" Izuku screamed in absolute and unbridled rage as Cultivator and Emotional Damage bounced off each other in Izuku's head like an echo chamber. Amplifying each other and making Izuku give in to his long repressed anger and frustrations.

"Gaahh!" Mitsuki grunted in discomfort as Izuku continued to hold her head down while recharging down between them with his free hand and lining up his manhood with her entrance and sticking the tip in.

Mitsuki gave the beginnings of a moan, but it was short lived as she realized Izuku wasn't going in any further.

Desperate and impatient, Mitsuki attempted to lift her hips to take more of Izuku inside, but he slapped her ass hard before grabbing her by the hip and forcing her down.

"You get all of me when I say you can!" Izuku growled dangerously and Mitsuki was actually a little aroused by the denial and him asserting his dominance. Though that might have been partially due to how desperate she had gotten up to this point.

Once he felt her submit, Izuku took his hand off her hip and went back to jerking himself off with his tip still inside. He had no intention of letting her feel him inside her like that yet. Not until she'd felt the full weight of his pain. But he wasn't going to risk getting carried away and cumming as soon as he was inside her and letting her off with only twins. So he focused on getting as much of his pre-cum in her as possible and making her start ovulating.

Meanwhile, Mitsuki squirmed and whined at Izuku only teasing her while painfully holding her down with his otherworldly strength. The feeling would only get worse as Izuku pulled his tip out and she gasped at the dreadful emptiness and abandonment she felt.

She was immediately brought out of it though, as Izuku used the hand holding her head down to grab her by the hair and pull up as he leaned down and took her large breast in his mouth.

"Gah! Aahhh! Izu!… I'm sorry!… So sorry! Aah!" Mitsuki cried and tears actually began to fall in a combination of pain and guilt as Izuku bit down and tugged on her nipple while his free hand painfully mauled her other breast and twisted the unattended nipple as he pulled on it.

This went on for a moment before Izuku switched and it was around this point that her breasts started to swell up larger and larger. The skin growing tight and more sensitive to Izuku's menstruations as he worked over her sore breasts while drinking from them.

Mitsuki's face began to deform into a combination of pleasure and pain as Izuku continued to drink from and play with her sensitive breasts greedily. They were so overloaded that her milk was spraining out uncontrollably, even when Izuku stopped squeezing.

Izuku finally released her breasts and took a breath before pushing Mitsuki back down. He then scooted forwards until his large manhood was resisting in the valley between her large, leaking boobs.

Mitsuki was a little dazed before looking up and seeing Izuku as he straddled her again and pinned her arms to her sides with his legs.

He then took her sore mammaries and squished them together hard around his manhood, causing them to spray milk even more, sending up arcs of the white, delicious liquid as he began thrusting.

Izuku and Mitsuki both moaned in pleasure as Izuku's pelvis slapped against the underside of her boobs.

"Yes!… Yes!… Punish me!… ooooohhh! I've been a bad mother!… This is what I deserve!" Mitsuki moaned out, much to Izuku's surprised.

He didn't let up though as Mitsuki writhed in the mix of agony at how empty she felt and pleasure at what Izuku was doing to her. Of how awful it was to know Izuku desired her and could take her needy womanhood at any time, but refused to do so, solely to hurt her.

And how much that turned her on…

It wasn't a kink she'd ever had before, but going so long without Izuku, especially after knowing he'd been with others and seeing him with Toru, had broken her mind a like bit.

Mitsuki's legs thrashed around and her hips rose up a few times as she tried desperately to reach for her womanhood to relieve herself however much she could, but Izuku still had her arms pinned. She could do nothing to pleasure herself beyond what Izuku was already doing and it pained and aroused her as Izuku continued his thrusting and even got a little faster and more intense. His fingers digging in a little harder before he started pinching and twisting her nipples again.

"You bitch!… You let my best friend turn into a monster! You ether didn't care enough to notice or intentionally let me suffer! You don't deserve to look so hot and young!" Izuku yelled before giving a hard thrust and grunted as he arched his back a little.

Mitsuki gasped as a white fluid that wasn't her milk, came shooting out from between her breasts and covered her face.

Izuku smirked evilly and triumphantly down at Mitsuki as he recovered. This was why he drank her milk so early. Not only to make her breasts more sensitive and to satisfy himself but so he could trick his quirk and cum on her early instead of just inside.

Mitsuki just stared up in wide eyed shock at Izuku.

Even in her current state, she could recognize how unlike Izuku this was. How much her son's treatment of him had affected Izuku deep down.

It didn't change the fact that her broken mind was into it and her inner thighs were soaked from her arousal.

Said arousal only continued to grow as Izuku stood up and pulled Mitsuki along by the hair until she was on her knees.

"You're going to take it all…" Izuku spoke darkly as he held her by the head and without further warning, thrust forward into her mouth and down her throat.

A strangled sound of shock reverberated through Izuku's manhood as he held Mitsuki's face against her pelvis for a moment and groaned at the feeling of her mouth.

He still much preferred a woman's tunnel and womb wrapped tightly around him, but at the moment he was more than satisfied with this as he began thrusting and heard Mitsuki make gagging noises as she tried to suck him back in each time he pulled back.

Mitsuki's eyes started to role back in her head as he worked her throat hard and she felt his balls hitting against her chin.

She held onto Izuku's hips for dear life as he showed no mercy. Her breasts swinging back and forth with each thrust as milk continued to leak out of them like fountains.

Her eyes then shot wide as she felt another set of hands lift her butt up and she glanced over at the window to see one of Izuku's doubles behind her and lining himself up.

For a brief moment she felt relief wash over her as Izuku was about to take her womanhood.

Only for her eyes to widen once again.

"That's the wrong ho-OOOOOOOOO!!!" Mitsuki internally screamed as the duplicate forced his way into her other hole.

Izuku grunted as he felt both ends at the same time and reached down with one hand to squeeze her swinging breast.

"You fucking bitch! Do you have any idea what he did to me!… All the times I limped home and had to hide the bruises and burns from my mom! All the times he belittled me and tried to brake me! Or how about the time he told me to commit suicide and pray for a quirk in my next life!" Izuku screamed down at her as he slammed into her from both ends and began spanking her hard.

Mitsuki's vision was starting to go white.

Whether it was the lack of oxygen or the pure pleasure and pain she felt, she didn't know, nor did she care, as Izuku smashed her relentlessly.

Izuku then grunted as he slammed in and pulled her face against him with both hands as he climaxed against. Mitsuki's eyes bugging out as she felt it all and her juices gushed out from between her legs as she finally achieved orgasm herself.

Mitsuki was in a daze for a moment before she realized she was breathing properly and the double had disappeared.

Izuku was still staring at her darkly though.

"I didn't say you could cum…" he said before spinning her around and forcing her upper body down as he held her ass up in the air and spanked her hard.

Mitsuki would once again be denied what she wanted most as Izuku rammed his way back into her sore ass and continued spanking her as he punished her rear.

"Oooohhhhahaaahhaahggahh!" her mouth now unoccupied, Mitsuki was once again able to moan, yelp and scream incoherently as Izuku worked her over and she reflexively clamped down tighter on him as her arousal continued to gush out of her.

Her sore and abused ass cheeks were now red and raw by the time Izuku was done spanking her and decided to grab her hair again and pull back until he could see her large breasts swinging in the mirror in front of them.

Mitsuki was starting to go limp as Izuku continued and her tongue lulled out as her mouth hung open.

"Yeeeeessssss!… Punish me Izu! I deserve it!" Mitsuki slurred her words before screaming as Izuku hilted himself deep and hard and she felt him release inside her.

Mitsuki gasped as Izuku pulled out and let her fall to the ground as he took a moment to recover from cumming three times in a row.

He then flipped her over and latched onto her breasts again and drank as he grabbed her legs.

Izuku then leaned back and held her legs straight up and pressed them together as he thrust forward.

Mitsuki gasped as she expected sweet relief.

Only to once again be disappointed as Izuku teased her. Thrusting between her thighs and against her slit but not even putting the tip in.

"P-please…" Mitsuki croaked out and Izuku paused as he watched tears welling up in her eyes.

"Please Izuku… I need to be punished, but I also need you! Please Izuku! I haven't gotten off since my husband left me! I'm begging you to put it in and make me ridiculously big and round! Make me carry your babies and then have to suffer pushing them all out! Show my son just how much of a man you are and how little of one he is!" Mitsuki begged as she panted heavily.

Izuku froze up in that moment.

A part of him was shocked, confused and disturbed at learning that Mitsuki had gotten divorced.

But that part was immediately buried by her begging him to knock her up and show up Katsuki in some twisted leap of logic. Cultivator and Emotional Damage both flaring to new heights as they bounced off one another.

"YAH!" Mitsuki yelled as her legs were suddenly bent up and over her head and her ass was lifted into the air so she was practically upside down.

And above her, Izuku was panting furiously as he lined up to impale her.

"Holy shit! Is he getting bigger!?" Mitsuki thought as she saw his Diku seemingly growing before her eyes to the point she didn't know if she could take it.

Izuku then let out a guttural breath as green electricity ached over him and he gripped her so hard she was bruised.

"SMASH!"

"AAAAHHHH!!!"

They both screamed as Izuku dove in as fast and hard as he could without seriously injuring Mitsuki. One For All active and making his movements a blur as he slammed down into the milf with no sense of rhythm or concern. All she could do was scream and cry in pleasure and pain as she continuously squirted in climax and milk flew from her bouncing tits.

Her long neglected womanhood hurt so wonderfully and she immediately started having nonstop orgasm after orgasm as Izuku's manhood smashed straight through her cervix and hammered her womb relentlessly while Cultivator enhanced the already immense pleasure and relief that Izuku had been building her up to.

Mitsuki's vision tunneled as the world around them faded from cognition. All she could see, hear and feel, was Izuku ruining her and her overstimulated and battered uterus being forced to ovulate over and over again.

Meanwhile Izuku wasn't much better. His eyes were practically all white as he experienced a lust and hatred unlike any he'd experienced before. It was almost as if he were put under a variation of Cultivator himself.

And in spite of having already cum three times already, the rate at which he was smashing Mitsuki and the mental image of his childhood bully despairing as Izuku relentlessly fucked his obscenely pregnant mother right in front of him, very quickly brought him to the edge.

"FUCK YOU, KATSUKI BAKUGOU!" Izuku screamed as he let loose inside Mitsuki. His Diku hitting the back of her womb as a massive amount of his cum exploded out.

Mitsuki screamed in one final and massive orgasm as her womb was filled with unimaginable heat and her screams continued into a wanton moan as she watched her belly distend from how much Izuku came.

Izuku held her there for a moment before finally pulling out and letting Mitsuki fall to the mats with a thud and a moan. Her body a mess of bruises, sweat and drying cum.

It took a moment, but Mitsuki finally started to come back to her senses as the effects of Cultivator on her mind began to wear off and her belly began to grow and grow.

Mitsuki blearily looked up at her massive belly as her body ached.

"Oh fuck…" was all she could say in her dazed state.

Her mind was still fuzzy as she tried to comprehend and come to terms with what Izuku had done to her.

What she had begged him to do to her.

As she rolled onto her side to try and get her bearings and relieve the pressure on her abdomen, she felt a chill run up her spine and gasped as Izuku's hot breath graced the nape of her neck.

"We're not finished yet…" Izuku whispered ominously.

"AAHH!!" Mitsuki yelled as she was hoisted up on all fours and Izuku slammed back into her aching womanhood. One hand holding her back by her hair while the other reached around to squeeze more milk out of her as her shocked eyes met Izuku's dark ones in the mirror.

She was then hit with an unexpected sense of arousal. Her newfound kink asserting itself as Izuku began hammering her without mercy.

Everything after that became a blur for Mitsuki as her world gradually went white. Only memories of immense pleasure and pain in every position imaginable and on every surface and bit of equipment in the room, filling her being for who knows how long, until she finally passed out.

Mitsuki gasped awake where she lay on the mats.

"What the fuck?…" she muttered in disbelief at the memories that were gradually coming back to her.

"There's no way that was real… Izuku would never behave like that… it had to be a dream…" Mitsuki thought to herself as she lay there, and the more she thought it the more she believed it.

After all, she wasn't in pain or filthy in the slightest.

No way she could feel this healthy, relaxed and clean, after what Izuku did to her. Or at least what she could remember of it.

In fact she couldn't remember having felt this good in years. Even her skin felt softer and smoother as she ran her hands over her massive pregnant bel-.

…

Mitsuki's head shot up to stare at her belly as she felt and saw it churn and shift from the movements inside and she felt several hard kicks.

"IT WASN'T A DREAM!" She screamed internally as she stared in shock and more then a little fear.

Before she could start hyperventilating though, she noticed her back was damp and there was a distinct feeling to it, like salt water.

She then heard a sound like a choked gasp and finally tore her eyes away from her belly to see the floor was flooded with a shallow layer of water and Izuku was sitting on some of the exercise equipment, hunched over and facing away from her.

"I…I-Izuku…" Mitsuki called quietly and Izuku flinched before hunching over further.

"Izuku" Mitsuki called again with more determination but Izuku still refused to look at her.

Mitsuki took a deep breath as she clamped down on her frayed nerves and mustered her best angry/disappointed mother voice.

"Izuku Midoriya… look at me…" she commanded flatly.

Izuku flinched one last time before slowly turning just enough for Mitsuki to see his red, puffy and bloodshot eyes with fresh tear tracks and snot running from his nose.

Mitsuki sighed as she let her head fall to the floor. She could only think of two, poorly chosen words to say in their current situation.

"Fuck me!"