After the initial fear subsides you convince yourself that she is just trying to scare you. There's no way she would actually do any lasting damage, you are her brother after all. What would your mother say if she found out she did that? No, it was all just a fear tactic to stop you from doing this again, you tell yourself.
"Fuck you" you say through gritted teeth, still in pain from her first kick. Your hands are slowly moving from your balls, leaving them open once more.
She smiles sweetly and replies, "I was hoping you'd say that", before lifting her foot even higher and stomping on your balls with as much **** as her body can muster.
You feel her heel collide with your left nut, crunching it into the tiled floor beneath you. She then twists her foot, grinding your already tortured ball even further beneath her, before resting the ball and toes of her foot on your right nut.
She is now stood full weight on your babymakers, and you see her start to smile. Soon enough, the smile turns into giggles as she bounces up and down on your flattened balls. Your moans of agony are drowned out by the noise of the shower, still running despite the turmoil.
"Please.... stop...", you manage to croak out as you lay limp from pain, staring up at her beautiful form.
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