Warning: Posting Neco-Arc may summon other creatures from the depths of Hell.
So, how about them cuckquean fanfics? Here's one for RWBY where Pyrrha shares Jaune with a whole bunch of other girls. >> "Of course my love." Pyrrha said as she closed the distance and started rubbing his chest affectionately. "We all agreed to share you, if you want to of course." https://archiveofourown.org/works/27104152/chapters/66184045
Maybe this would work best in the existing thread for cuckquean stories at >>110 ?