Step

Rachel grinned at the fetal ball of whimpering male suffering beneath her as a quiet involuntary moan of anticipation escaped her lips.
She gently placed a sandalled foot on Paul's hip then quickly shifted her body weight to roughly jerk his pelvis down to the floor, forcing him out of the fetal position unto his stomach.

She smiled briefly as the sounds of his moans and sniffles reached her ears despite his face firmly burrowing in the basement carpet. He was unable or unwilling to move as his feeble legs spread enough for his battered balls to be seen protruding temptingly from under his ass.
Rachel slowly walked into the V between his legs, slipped off her sandal, and stepped firmly on his aching nuts. The young female tormentor giggled joyfully at the feeling of Paul's soft balls squishing between her little toes as he desperately tried to close his parted legs and reach for her ankle, squealing pitifully into the carpet.

Laura carefully watched her younger sister's savage attack with swelling excitement, aroused by the tortured sounds of their helpless captive. With her hands still burrowing between her legs, she gently moved the damp crotch of her panties far to one side, gaining unrestricted access to her pleasure zone. The older sister parted her pussy flaps and ran her middle finger the length of her slit, coating its fingertip in the sweet juices which had collected there, then moved it up through the parted lips to moisten the yearning clit. She gently touched the the small erect bud then slowly circled her thing fingers it in tiny loops, steadily accelerating as the impeding orgasm rapidly build up inside her shuddering body.

Rachel raised the heel of her foot, placing all her weight on the toes planted firmly on Paul's organs and concentrated to maintain balance in that position, only falling back on her full foot for a second before resuming the agonizing toe stance. She giggled uncontrollably watching Paul's legs flail violently as he gave up trying to stop the young girl's persistent onslaught and screeched dejectedly into the carpeted floor.

She maintained this exercise until her toes grow numb, abruptly stepping off her classmate's throbbing orbs to recuperate.
Paul curled back into a fetal ball at her feet, covering his swelling nuts and whimpering softly.