Probably the most humiliating thing my Mistress ever made me do was making me lick up my own cum if I was allowed to have an orgasm. She made me lick it off the table, her shoes, out of her hand. Eventually she made me buy a little bowl at an antique shop especially for this use.

I would be required to do this at home in private with her, or even at the play parties with her group.

Later on, She even told some of our chat friends about this, and required me to do it on camera for them.