Another theme might be redemption or growth. Maybe Deku, through his relationship with Bakugo's mom, helps Bakugo to grow and change his attitude towards Deku. It could also show Deku's growth as he navigates a relationship with an older family member of someone he has a complex relationship with already.
I'm not sure about specific 'deku x bakugo mom fanfic' offhand. However, you can try searching on popular fanfiction websites like Archive of Our Own. There you might find various works related to this pairing. Just use the search bar and type in 'deku x bakugo mom' and browse through the results.
Another theme could be growth. Deku is constantly growing as a character. In these fan fictions, his relationship with Bakugo's mom might contribute to his emotional or personal growth. Maybe she offers him advice or support that he doesn't get from other characters. And also, there could be themes of unexpected relationships. It's an unusual pairing, so exploring how such a relationship forms and what it means for the characters involved is likely to be a theme.
I haven't read any 'Deku x Bakugo Mom' fan fictions myself. However, you might want to check out some popular fan fiction forums. There, fans often share and recommend their favorite stories. You can also look for tags related to these characters on the fan fiction platforms to narrow down your search.
The main differences are in their expressions and some minor details of personality. In the manga, Deku might seem a bit more intense, while in the anime, he's sometimes presented a bit softer.
Deku might be completely shocked at first. Since Bakugou has always been so aggressive towards him, he would never expect such a confession. He might just stand there, mouth agape, not knowing what to say.
His friends could come to the rescue. Bakugo, for instance, might use his explosive power to break into Toga's hideout. He's always been competitive with Deku, but he also cares about him deeply.
In 'deku meets future deku fanfiction', perhaps the future Deku warns the present one about upcoming threats. He could tell him about villains he'll face in the future and how to defeat them. This would give the present Deku an edge in his battles and also in his growth as a hero.
Well, obviously Deku in two forms - the younger and the older version are the main characters. The younger Deku is the one who is still growing and learning, while the older Deku has more experience.