The characters are split into three groups: Students, Heroes and Villains. It's this way because it's easier for me to work this way instead of putting all characters on one page.

I don't do NSFW/smut.

The MC (you/your OC) is whatever gender you want them to be. They have whatever quirk you wish them to have. They go to whichever school/class you wish them to go to. Their personality, age and appearance are also up to you.

I will use their full names since some people only know them by their first name, others by their last so it's just easier for everyone to know who who is.

Izuku Midoriya:

He was quick to ask what's wrong, thinking something happened. When you smiled and said you simply felt like hugging him, he let out a sigh of relief before his face turned bright red and he stuttered out random words.

Katsuki Bakugo:

He frowned, asking in an annoyed tone what you are doing while pushing against your face to get you off. When you tightened your arms around him and said hugging him, he groaned but let you be. After a few seconds he will wrap his arm around you. When you point it out, he will yell not to focus on that and to get off already.

Shoto Todoroki:

He stared, wondering why you suddenly hugged him before he hugged you back. He didn't ask you if something is wrong, he decided if something is wrong, silent comfort might be what you want since you hugged him out of nowhere and said nothing.

Ochaco Uraraka:

She let out a yelp before giggling, happily greeting you and hugging you back. When you wanted to pull away, she pout, hugging you tighter, saying to let her enjoy the hug a little longer.

Tenya Iida:

He tensed up, telling you not to hug him while he's trying to keep the other students to behave. When you hugged him tighter, he felt his cheeks heat up before he cleared his throat and pat your back, knowing he can't convince you to get off so he will just wait until you are done with the hug.

Eijiro Kirishima:

He got a little blush, trying his best to act like a tough boyfriend, which failed when he spoke and stuttered. When you laughed at the stutter, his blush went redder and he felt his heart melt at how cute you are before he hugged you back, mentally thanking your parents for giving birth to you because you are such an amazing lover.

Tsuyu Asui:

She let out a confused "ribbit" before asking if you are okay. When you smiled and said you are okay, she smiled back and said that's good before wrapping her arms around you.

Momo Yaoyorozu:

She will let out a little "ow?" before worriedly asking if you are okay. When you told her you just want a hug, she gave you a smile and wrapped her arms around you, happily saying she can do that before holding you in an embrace with so much love.

Denki Kaminari:

He let out an excited cheer, exited he got a hug from his lover before he hugged you back. He hugged you back so quickly that you two stumbled and almost fell, for which he awkwardly chuckled and apologized.

Kyoka Jiro:

She let out a nervous chuckle, a bit flustered at the sudden attention, asking you what this hug is for. When you told her you just wanted to give her some affection, her cheeks went red as she scratched the back of her head, unsure how to react to such a kind thing.

Fumikage Tokoyami:

He got shy, asking why you are hugging him while avoiding eye contact. Before you could answer, Dark Shadow popped out and hugged you both making Fumikago groan in embarrassment but also hug you, mumbling this is embarrassing.

Mina Ashido:

She wanted to move aside when she saw a figure going for her, but when you wrapped your arms around her, she laughed and hugged you back, happy it's you and not some sneak attack from someone.

Yuga Aoyama:

He will proudly smile, saying of course you would wish to hug a beauty like him. When you let go and left, he proudly fixed his hair, saying his lover is so cute before he went to the other students to go brag about his cute lover.

Eri: (Yes, Eri is included because this child deserves all the love, especially after all she went through. It's not mentioned whether you are her lover or not so it's for you to decided yourself whether you are her lover or just a big sibling figure. She's written as the age she is in the anime, she isn't aged up. I just thought writing about reader and Eri could be cute.)

The first time you did it, she began crying. When you worriedly asked what's wrong, she cried out she has never been hugged with so much love before. After that, whenever you suddenly did it, she always let out a soft yelp out of shock at the sudden hug. Eventually she got used to them and began liking them a lot.

More will be added, some from other classes maybe. Starting with a few is just easier for me.

Sorry if anyone was out of character.