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Izuku Midoriya was well known for his avid fanboy obsession with the number one pro-hero All Might.
It was obvious from the aspiring hero's detailed notes, pencil sketches in the margins of his school books and the dedicated shrine the greenette called his bedroom that the child liked All Might. He always had and Inko Midoriya had fully accepted the obsession her child held towards the middle-aged man, completely unaware of the true feelings behind the teenagers actions.
It, as many crushes do, started out quite innocently. A five year old child is not likely to be taken seriously when they claim to wish to marry a famous celebrity. Even at ten years old the claim can be considered as a mere childish want to know their favourite hero.
There was no reason for Inko Midoriya to suspect anything more.
Her son had always loved heroes and quirks and don’t most children say things they don’t mean?
At some point Izuku had stopped confiding in his mother about his feelings towards heroes- not to say he had stopped liking them! In fact it was quite the opposite.
As he grew, so did his love. Platonic at first. A vague hope that his icon would fill the void left by an absent father. By 10 he knew. He knew this was more than just the pitiful wants of a fatherless child.
He loved All Might.
Meeting All Might at age 14 had done nothing to dissuade the boy of his love and he had found that the more he got to know Yagi Toshinori, the more he fell in love.
A man, so human and mortal, with the same ideals as All Might was just as attractive as the figurines and posters of the man in his hero form that filled Izuku Midoriya's small bedroom.
Izuku had not let this realisation halt his progress however and pushed himself past the distraction and fully into his training. He would not let the man down.
Of course Izuku succeeded into making it into U.A where he found All Might was to be his teacher all year!
He rejoiced in the chance he had been given to spend even more time with his idol.
If only he had been more subtle about his crush.
Yagi Toshinori had originally written off Midoriya Izuku's fanboy attitude as harmless.
He was a great student- motivated and diligent. He pushed himself to the limit time and time again with the sole aim to be able to inherit One For All.
At least, that’s what he had originally assumed.
It was endearing at first, to see a young boy blush every time he made eye contact with his biggest hero but rather than dying down as one would expect after prolonged exposure to a celebrity, the blushes seemed to grow only more prominent.
When Izuku had originally found out about his Small form he had expected rejection.
How could someone so weak still be considered admirable?
But soon it started making sense.
A crush.
To make matters worse, Toshinori was struggling with a crush of his own. The first since before he had gone pro.
He blamed the boy initially. Surely the crush Izuku held for him was getting to his head? It would die down soon, he had thought.
But it hadn’t.
Blushes became mutual and the natural brushing of hands elicited sparks for the both of them.
It was wrong. So so wrong. He was a hero, but he couldn’t stop himself.
Izuku Midoriya with his fluffy green hair and freckles had worked his way into his heart.
He became obsessed.
Training the teen had become a task to not ogle the young man as his developing muscles glistened with sweat as he worked tirelessly to clean Dagobah beach.
After the long days on the beach the two had started a habit of hanging around to merely chat with each other- both unwilling to leave the presence of the one they loved.
These chats only added to the blond mans' attraction as he got to know the teenager behind the youthful face and lightly tanned skin.
He was perfect- too perfect for him anyway.
Unbeknownst to the two, their relationship was slowly evolving. Fleeting touches became longer and glances became heated stares as they spent more time together.
It came to a head a few months into Izuku’s first year.
It had started out as a lunch break like any other. All Might had come to collect the boy from his classroom and invited him, as always, to the private meeting room. They had eaten their lunch while chatting amicably.
Eventually the conversation had tapered out and the glances had started.
Izuku could feel his blush spreading far beyond his face. Close proximity to Toshinori tended to do that to him.
It was almost unbearable to be this close to the man. They sat next to each other, legs brushing against the other’s.
It was too much.
“T..Toshinori-san" Izuku stammered out. The top hero turned further in his seat to face the boy, eager to take in the sight of a blushing Izuku.
“Yes?” he enquired. But Izuku had frozen up.
They were so close, too close. Touching.
It was too tempting, Toshinori's face was tight next to him, tilted to the side in curiosity.He couldn’t speak, but he could move.
Before he could talk himself out of it, Izuku moved in and pressed his lips upon the older man’s own lips.
Shocked, the man leaned into the kiss briefly before realising what was happening.
Breaking the kiss was harder than anticipated.
Izuku’s lips were soft. As was the hand that had come up to touch All Might's cheek.
When All Might finally mustered the will power to break the kiss it was already too late as Izuku had broken it himself to take a breath.
He saw the boy freeze, redden then pale dramatically as he realised exactly what he had done.
Before the boy could panic too much, Toshinori recaptured the soft lips, fully engaging in the closed mouth kiss.
It was heavenly, pure bliss.
He had fallen.
He could enjoy it while it lasts.