Your eyes meet hers as soon as you open them and you feel mesmerized with lust again.
"Good boy," she tells you smiling intently, still pressing her weight on you, "now stay with me."
She stretches her leg back and pulls on your shoulders as she flings her foot at your ball sack the final four times all at once. You feel the first impact slap your nuts underneath of you and by the time they came back her foot was already there to meet them again. You tried to panic but realized she was holding you in place firmly and helplessly looked down as she slammed her foot into your balls two more times.
She let go of you promptly and you dropped like a bag of potatoes, stunned and reeling in throbbing pain... proudly defeated.