@Olo in this one, she’s human and he’s a giant who’s been shrunk down small enough for her to carry around. It’s a curse or some sort of punishment to make him learn humility and/or empathy, and they have to figure out how to counter it. He drops hints that give away that he isn’t human, but they’re either too ambiguous or she thinks he’s exaggerating on account of his cockiness.
I’m better at handling F/m and SM content than I was before, but it still makes me uneasy so this first part is limited in sexual content, develops them initially as characters and their relationship and is otherwise a pretty typical “save the shrinkee” story. The second part then establishes that it’s not an immediate or straight reversal of roles. For example, he’s maybe ~10 inches (the size of a statuette or figurine) when shrunk, but humans are finger sized to him at his regular size. Another is that they figure out how to restore him, but they are separated as a result so they’re not together when it happens, and then followed by a time skip of a few years - allows for other kinds of growth and more weight to her reaction come their reunion.
It currently lives rent free in my head so I’m just taking a lot of liberties with elements I don’t usually get to play with.
simply put.

good job, husband!