Basically this idea is for a harem story where the girls in the harem are OCs from online artists.
The protagonist can be an OC as well, a Self-insert or a Pre-existing character.
Examples:
Glassfish:
Major Melons from, well, “Major Melons”
Ms. Cooper, Mrs. Beck, Ms. Smith, Mrs. Holmes and Officer Barnes from School Kinks and Hijinks
Splutt:
Sunny
Aeolus:
Giggles the Slutty Clown
Dr Martinez Nurse Pamela
Helen Fujiyama
Mangrowing: