Okay this one is going to sound crazy, but how about a fic where Yoko from TTGL, Erza from FT, Lightning Farron, and Princess Zelda (doesn't matter which) all end up in the Monster Hunter universe?
They become addicted to the food and eventually the meat from the monsters and eventually become hunting fanatics, wanting more and more delicious monster meat.
The results is after 1 year they've become 10 foot tall Strongfat Amazonians famed for their hunting and massive bellies. Yet they are still not satisfied but some question if they should stop but others are too enticed by the delicious meat.
Then their bodies begin to change again as they slowly turn into monster girl versions their preferred Monsters of eating, and stop hunting for parts and cooking altogether and just devour the monsters whole!
Eventually they become too feral to work together and disband, leaving to become Goddesses on different islands, fed nonstop by their believers for centuries