Fanfiction.net is also a good place. There are a lot of My Hero Academia fanfics on there. Look for the Bakugou and Izuku tags and then narrow down your search to the ones that focus on their relationship in the way you're interested in.
You can try Archive of Our Own (AO3). It has a large collection of fanfics, and you're likely to find many Bakugou x female Izuku stories there. Just use the search function and type in the relevant tags.
I'm not sure if there is such a specific fanfic available. Fanfic topics can be quite diverse, but this one seems rather unethical in the context of the characters' relationships. You could try searching on major fanfic platforms like Archive of Our Own or FanFiction.net to see if it exists.
A really interesting fanfic is 'The Unexpected Bond'. This story starts with Bakugou and female Izuku being paired for a project at UA. At first, they clash because of their personalities. But as they work together, they discover hidden sides of each other. The author explores their emotional journey in a very detailed way, and it's a great read for fans of this pairing.
There's a fanfic titled 'Bakugou's Hidden Care'. Here, the story is set during their training days. Bakugou notices Izuku struggling more than usual. He doesn't show it in the typical way, but he starts to subtly protect Izuku from overexerting himself and getting injured. It's a great exploration of their complex relationship.
A great way to develop their relationship is through shared traumas. Maybe they both had a difficult experience during a villain attack. They could open up to each other about their fears and insecurities during that time. This vulnerability would bring them closer together. Additionally, they could participate in a hero competition together. As they face tough opponents, they encourage each other and celebrate their victories, which deepens their bond.
Eventually, he might come to accept it in a grudging way. If Izuku is wearing the clothes for a good reason, like in a team - up situation where it's part of a strategy, Bakugou might tolerate it. But he'll still probably make some snarky comments about how Izuku better not ruin his clothes.
It could be part of a 'truth or dare' type of situation within their group of friends. Izuku is dared to wear Bakugou's clothes for a whole day. As he does so, he starts to understand Bakugou's fashion choices better and also how others perceive Bakugou based on his appearance. It might also make Bakugou a bit more self - conscious about how his clothes represent him.
They have a complex relationship. Sometimes they're rivals, but there's also a hint of friendship and mutual respect.
It's the chemistry between the characters. Their dynamic and the tension make it really interesting.
The relationship between Bakugou and Izuku in the manga is quite intense. Bakugou starts as Izuku's bully but later there are signs of a more complicated connection with elements of rivalry and a hint of mutual understanding.
The comic usually focuses on the complex relationship and interactions between Izuku and Bakugou, with lots of action and drama.