Hey, guys. BD, here, with another MHI story. After a few years of proposing this, here is the fem!All Might x Izuku yandere story. Enjoy!

It was the day of the sports festival that Toshinori Yagi made up her mind that she was going to deflower her protege, Izuku Midoriya. When that thought penetrated her mind, it stuck, if not lingered. There wasn't much she could do about it. Who could help her? Who could save her? Who could convince her to stop the unthinkable?

It covered her skin like a blanket or embraced her like a true love. It was tattooed into her mind like graffiti on statues and the walls of restrooms. When she taught class, the thought was with her. When she monitored students walking and perusing the hallways, it remained. When it was time to go to bed, the thought resonated in a much seductive way — like a lover who has a lover behind closed doors.

She admitted that the thoughts of deflowering her shounen weren't there too long. Or were they? Maybe they were hidden deep into her conscience — like a seed that craved the living waters to bear fruit. Maybe she knew all along that she wanted to do unspeakable things to him and just denied it.

A touch on the cheek here, or an elongated pat on the back there. Was it his smell that garnered those thoughts? Was it how contagious his smile was whenever he entered a room? Could it have been how much this boy begged and pleaded to serve her?

"What if this thought wasn't conceived by me but as a pre-development in the synapses of my mind?" Undoubtedly possible, she thought as she sat in lamentations — another soiled pair of Izuku's boxers, soaked and permeated with her juices. It was an accident. The boy left them on the floor when he stepped into the showers after Hero training.

She picked it up just that no one else would think about swiping it. She knew Kacchan would have been advantageous in teasing her protege. Bakugo knew better. If he valued his life, then he should read the mood. Frankly, he would be better off at another school in another prefecture that was located on another planet — galaxies far, far away.

She would give it back, just needed to think properly on an excuse. Embarrassing to think how shy it would be that she, the former symbol of peace, would fear returning an article of clothing that was rightfully Izuku's. As a woman that fought to save the world, she can assume that her kryptonite was the jolly spirit of the boy.

She folded his boxers neatly and placed it in a plastic ziploc bag under the bed — along with items that she was only borrowing. Just borrowing! She had told herself that she would bring him back one of his volume of notebooks. That missing toothbrush or that missing pencil he borrowed from Iida. A snip of hair she took while he was sleeping in his dorm. One can never know when a villain decided to go bump into the night.

Accidents she kept telling herself. Accidents, accidents, accidents!

"Shit! I have to get to class!" Toshinori spent too much time digging into her cavern, praying and wishing that Izuku's noble rod would someday be excavated there. It irked her that these were only thoughts — thoughts of grabbing Izuku and throwing him into a closet. Wanting to snatch away his clothing and touch him in ways he thought a man couldn't be touched. She would touch him and in turn, he would touch her.

Even now, knowing school needed to be attended and she wanted to go back on the lie and thrust her hips into the air. Spreading her legs and prying open those reddened, swollen, fat lips and crying out the name of her love before spraying all over herself.

Someday Izuku will be there to plug up that dam. Every hour, every minute, every second, she was approaching flood stage. "Fill me up, Deku baby!"

Later that day….

The only thing on Toshinori's mind was to bait her protege. The weekend was upon them. Either if the planets have aligned in her favor or just sheer coincidence, a four-day weekend was upon them.

She was in her office. It was her planning period so she had to keep her door ajar for any walk-ins. On the surface, she was supposed to be grading papers from class 1-A's latest exams. Chewing on her pencil and fervently touching her with her free hand, her eyes laid upon the paper of the boy she loved.

As expected, the boy did great. Of course, there were grammatical errors as she told them that the exam was to be written in English. Nevertheless, the cinnamon roll pulled through. She licked her lips, feeling feverish and wanting to close that door so she could commence in the thoughts of him. Just knowing that she wanted to dominate him tantalized her troubled soul.

"What lie can I produce?" Toshinori pondered to herself. She could ask his mother if she could borrow him for the weekend. It wouldn't be the first time they had alone time. Municipal Beach Park Dagoba — the portside area recently developed a makeshift onsen where she could exhaust the bunny's uses until he is spongy and bruised, only to carry him to her private quarters at the beachside hotel where they commence their lovemaking.

Fertility pills were already in her purse. She had male enhancement pills that she could crush in his favorite katsudon. She imagined them sitting at one of the stands, distracting him — going to a nearby store to retrieve an item only to pour it in the dish. Seeing his guileless face as he partakes the dish, only to be heartily filled not only in his stomach but where it counts the most.

She heard a knock at the door. Her eyes darted at the source. She quickly pulled away the pencil from her skirt. She saw residue. The trash can, it went.

"Sensei?"

Did her ears deceive her or was she hearing the Adonis himself gracefully entering her presence?

The emerald-haired teen peeped into the room, wrapping his hand around the doorframe. His doe-eyes appeared as if he had a concern, as if he wanted to talk to someone. Well, he came to the right place. What could his mentor/surrogate aunt (and future mother of his kits) can do to sate his needs?

"Oh, Midoriya-shounen!" She said to him as she waved to him. "Come on in…and oh, close that door behind you, will you?" No need for others to pry on their conversation. She felt she was having a hot flash as she felt she was sweltering.

And they were in the middle of February.

"Sure." Izuku responded as he followed her request. He looked nervous. Why should he be? Clammy palms, drenched underarms, just the smell of manliness permeated out of the boy. If it was as if he was begging her to perform the R-word towards him. She had to fight it. It was still school hours and didn't need a certain pesky, overly used, saggy-breasted blue-haired temptress prying in. Toshinori wasn't stupid. The bitch talked about Deku like she was his man. That was a lie! What was to stop her from cutting her brakes or slashing the back of her ankles. Can't go after him if she had a limp or was sporting a wheelchair.

She leaned back in her chair, feigning a yawn as she reached over to turn on the radio — freeform jazz. "So, Midoriya-shounen, what can I do to help you?" She put on a smile. "Would you like anything to drink? Something to snack on?" "Would you like to baste the turkey with that special gravy of yours? Could you care to stir that mortar of mine with that hard and mighty pestle of yours?"

Instinctively, he bowed as he took a seat across from his mentor. As usual, he observed his surroundings — simple, yet typical office decor that consisted of a desk, a mini-fridge, and a window view of the campus. It wasn't the biggest office space but All Might wasn't picky. If the lad only knew that she picked this space so she could see him walk to and from campus. It also gave her a great bird's eye view of his dorm.

She was thankful that she didn't bring her telescope to the office on this day.

She scooted her seat casually by his side. She saw to it that she blockaded his exit. Now cornered, anything that may provoke second thoughts or hesitance were futile. "So, Midoriya-shounen. How can I help you today?" She said, shaking that one leg in upward motion. She wasn't wearing shoes so he could see her white stockings. Hopefully, his curious eye could trail where the knee-high stockings could lead.

"Well, Sensei," he said, still displaying nervousness. "I wanted to talk about yesterday's practice with Hadou-senpai."

"What about her?" She replied, displaying a fake smile. "What about her? That dumbass jailbait!"

"Yesterday's practice was intense. I knew it was a timed obstacle course and I told her not to pull back." All Might recalled that. They were at Endeavor's agency where it took place. The blue-haired cum dumpster had the nerve to wear revealing clothing despite being against the rules. That bimbo told her that she needed agility thus wearing her outfit. That bitch wanted to be sure that her outfit wasn't the only thing tight in the room.

"Well, that's true, Midoriya-shounen. However, you proved your own in the second-half. Dodging her shockwaves, using your Full Cowling in counterattacks." "Damn, were you sexy too. The way your muscles showed through your ripped shirt. Damn did I envy the clothes that covered you." All Might was getting drenched just thinking about yesterday. Even if she wore a pad, no pad in the world could absorb the flood waters that were breaching her dam.

"Thanks, sensei. Please believe I appreciate the compliment but I feel that she was holding back." God, the kid was true to his word on becoming the greatest hero of all time. It was a shame — the fact that she and the League of Villains may share common interest in dismantling that future. If he becomes a hero, then he becomes noticed by these plastic slutty fangirls who would care to become his hero. "He is my exclusive bodypillow. Find your own man to hump at night, you fucking shrews!"

All Might cleared her throat. "I am sorry that you feel that way." She lightly chuckled. "Would you care for any suggestions?" She slowly raised her leg slightly as she lowered it down.

If the boy looked, she wasn't wearing anything underneath.

"You know what, sure, Sensei." Izuku nodded to her, displaying his determination. "Do you have any free time? This evening, maybe." He paused, trying his best not to stammer. "It is a bit of a last minute request. I plan to stay here through the weekend. It will be a bit lonely since Kacchan is going to visit Auntie, Iida with his older brother, Ochako and…."

She wanted to squirm. No need to bait him in as the mouse itself walked itself to the cheese on the board. She pursed her lips. "I can make time to meet." She looked at the clock on the wall. "I can make some calls with some agencies to see if there are any spaces to use."

Security cameras filled the campus. No need to cause a disturbance with Nezu…again! It was a minor incident that involved the locker room and Izuku's boxers. It was honestly an accident. She took sleep medication instead of her headache medicine. Pharmacists need to do a better job with their description in medication — anyone could have thought that PM stood for Power Medicine!

Hearing those words put a smile on his face. The boy scratched under his freckles and bowed humbly. "Thank you, sensei." He bowed again as he stood up. "I'll be sure not to let you down." He reached over and hugged All Might.

Fireworks were going off in her mind. She was bathing in his scent. His body was touching her body. His pecs pressed against her large Tsunade-like mounds. If she could cum and allow the flood gates, she would — all over her dream boy. She kept telling herself to hold back. The cameras were watching!

She slowly, but not immediately pushed him back. She regained her composure as she cleared her throat. "I'll text you the details but be ready at 1700."

"1700, ma'am?" He arched his eyebrow.

"5:00 PM. C'mon Deku! You're one of the best students in math, but you don't know about military time? She clicked her tongue. "What am I gonna do with you?"

"Sorry, Sensei!"

"That's okay. Oh, by the way, wear your gym uniform."

"Would I also need a change of clothes?"

"Don't bother." "No point in showering afterwards. I am already wet."

A few minutes later….

Toshinori canceled any appointments planned for this evening. Just as a precaution, she took a couple tablets of her fertility pills. Today was not a safe day, yet again she knew wouldn't be playing it safe.

She prepared a few outfits for tonight's function. Hotel reservations were put in place — room service, champagne on ice, and a tiny "do not disturb" trinket was all she needed for a great night.

However, she had one more thing for insurance.

She received a text. Right on time! She saw the text, confirming what she wanted in case of resistance — quirk-nulling drugs. She had a friend (not really) who knew what she wanted and acquired. It didn't go without a price. Of course, a hero or two might face some peril but they were low-ranking anyway. They wouldn't believe that the former Symbol of Peace had something to do with it. Thankfully, this wasn't Chicago — the only backdooring going on would be Deku giving it to her.

A psychotic grin spread as she watched the teen head back to his dorm. This time, she couldn't hold back as she began tantalizing herself to the thoughts of raping and corrupting him.

One thing was for certain — this was going to be a night to remember.

To be continued….