No, it's not appropriate. Deku is a character with his own depth, goals, and story within the MHA universe. Fanfic should aim to explore his hero journey, his relationships in terms of mutual respect and support, not create content that focuses on inappropriate or disrespectful ideas like this.
I don't really have a list of specific 'mha deku x boobs fanfic' as it might lead to some inappropriate or objectifying content. Instead, if you like Deku, you could search for fanfics that focus on his growth as a hero, his friendships, and his challenges. For example, there are many fics that explore his relationship with All Might or his classmates in a positive and meaningful way.
I'm not entirely sure specifically what a 'urakaka x deku fanfic' is about without reading it. But generally, it could be a fan - created story that involves the relationship or interactions between characters named Urakaka and Deku. It might explore their friendship, adventures together, or even some unique scenarios in the world of the original story they are from.
Well, in such a fanfiction, it often explores a different side of Deku being a villain and his relationship with Todoroki. It could be about how their dynamic changes from the original story. Maybe Deku as a villain has different motives and goals that somehow involve Todoroki, like trying to use Todoroki's power for his own evil plans or trying to turn Todoroki to his side.
In deku x hatsume fanfiction, a frequent theme is the power of teamwork. Since Hatsume is great at inventing and Deku is a determined hero - in - training, they often team up. This teamwork is not just about fighting villains but also about achieving goals in the hero academy. Also, the theme of friendship - turned - love can be seen. They start as friends or classmates, and as they spend more time together, their relationship deepens into something more romantic.
The main characters are deku and momo. Deku is known for his tenacity and growth as a hero. Momo is intelligent and has a unique quirk that allows her to create various objects.
Love and attraction are also very common themes. The fanfictions usually explore the budding relationship between Deku and the reader. There's often a sense of admiration from the reader towards Deku's heroic qualities. Also, friendship - to - love transition is a theme that appears frequently. At first, they might start as friends and then gradually develop deeper feelings for each other. And the theme of facing challenges together is also prevalent. They have to overcome various obstacles in their relationship and in the world of heroes.
Another theme could be the exploration of their different personalities. Shindou might be more of one type of character, and Deku another, and the fanfiction could show how they interact and complement each other. Maybe Shindou is more confident and Deku more reserved, and their relationship helps them both become better versions of themselves.
There could be a fanfiction where Deku and Tsuyu are paired up for a special mission at U.A. High. In this story, they start to develop feelings for each other as they face challenges and rely on each other's strengths. Tsuyu's calmness helps Deku when he gets too worked up, and Deku's determination inspires Tsuyu.