Dumb Luck
** she drops your nuts and kicks are the insides of your knees before backing up a step **
Straighten your back, hold your cock out of the way and spread your knees further. Don't fucking argue with me if you want to be my slave.
She taps the toe of her high heels against your ball sack lightly and you start to feel blood rushing to your cock.
"Look at your balls," she says continuing to wiggle her toe into them, "remember what they look like right now because if you do well today there will never be a day in my service where they are not swollen, black and blue."
"I'm going to give you 8 full-force kicks today," you hear her say but it doesn't quite register as you can smell her pussy and you start to imagine how wet it is as you stare at her g-string lustfully, "In between each I'll reward you with the pleasant sight of my body. I know this is asking a lot since this is your first ball busting but we'll get through it together slave."