Lady Fine is as fine as her name suggests. But she also has a spit fetish that she enjoys using to humiliate and get back at people she wants to humiliate and degrade. She spat on herself and her armpits and made her slave lick it. She wanted the saliva to mix with sweat and then her slave would lick it all and then swallow it. And he did as she ordered.
Mistress BlackDiamoond did not feel like trampling or ball busting her slave. So she decided to do something else but equally painful. She made her slave lie down and open his mouth. Then she had fun making him swallow her spit. She would stand on top of him and spit directly into his mouth. Then she made sure he swallowed her spit and licked his mouth as if he was eating something delicious.
Lady Julia loves to degrade. For her, it is not about pain. At least not physical pain. She is more into the psychological one. She likes to make guys do things which are not only humiliating, but they are disgusting and degrading as well. Like how she made this guy eat and swallow her spit. She told him that it was an appetizer while he waited for her to give him a great meal.