This guy screwed as his hands are tied behind his back. There's no way for him to get away from Jamie-Kate. He won't listen to her so she smacks him with her riding drop. Then she spit on her boot and forces him to clean it off. The only thing he's allowed to use is his tongue. He has to choice but to clean the spit off the sole of her shoe with his tongue.
When Tina D gets a new slave, she enjoys training them. One of the first things she teaches them is how to spit clean her boots. She spits on her boots where there is dirt and she instructs them to lick the spit and dirt off. She knows they aren't used to it and is willing to spend all the time necessary teaching them how to do it properly. She spits over and over again, bruising their tongue.