Competition between subs

[amf67]

I was looking not necessarily for a specific story but some sort of sorry where a Domme creates a game or contest between two or more subs with some sort of sexual prize for the winner and significant penalty for the loser.

I know i have stories like this but i don't know how to find them. There may be plenty of stories like this but i haven't found them. Please let me know if you are aware of some and the best way to find them.

Thanks