Finish

Laura, still filled with the post-orgasmic floating sensation, jumped off the couch onto her feet landing at the top of Paul's head, catching the attention of her panting sister.
'Enough, it's time to let him go' she said to Rachel in an authoritative voice resembling a disciplinarian.

'But this was soooo much fun!' Rachel declared defiantly in disappointment of the imminent wrap-up.

'I know, but if we keep this up there will be nothing left of his balls for us to play with in the future' Laura regarded her younger sister soothingly.

Rachel considered her sister's explanation carefully, rapidly running through the captivating possibilities of brutal future entertainment.
Her thoughts were interrupted by Laura's persistence:
'Besides, there will be other boys to play with. We just have to keep this one quiet.'
Submitting agreeably to her older sister's apparent experience, Rachel looked at Laura inquiringly for instructions.

The older girl crouched just above Paul's head and tilted down until her eyes met with his, tear-stained and frightened.
He lay flat on his back limply, weary arms stretching towards his battered crotch, feebly covering his pummeled manhood.
'We're going to leave your poor balsies intact for now, and if anyone asks us what happened, we will say that Rachel kicked you only once in self-defense', Laura explained confidently with routine tone of a practiced performer.
'But if you ever tell anyone about what happened here,' she grabbed his nose to accentuate the point, 'we will capture you again and we will not stop until your little grapes spill out like grape juice' Laura concluded her stern warning with a threatening tone which sounded to Paul more like a guarantee.

Rachel waited patiently, adjusting her sandal, as her sister stood up and carefully stepped forward standing directly above Paul's head with her feet planted widely on either side of his face.
Paul's view suddenly filled with the Laura's crotch presented immodestly beneath her skirt, white cotton panties still rolled into a tangled string to one side, revealing her wet, cream-covered pussy slightly pulsating from the recent stimulation.

'Look at this boy' said Laura in a soft alluring voice, carefully lifting her frilled skirt to ensure no shadow could obscure her indecent presentation, just outside of Rachel's view.
Paul was convinced this was a trap, that there would be some agonizing consequence to following the flaunting girl's seductive command, but the repercussion of disobeying the girls' orders terrified him more than his tentative caution.

'What are you doing?' asked Rachel confused by her sister's sudden exhibition of her privates.
'So he remembers that we are girls and that he can never do to us what we did to him.' the older sister clarified what Rachel quickly realized was an obvious truth which will undoubtedly prove instrumental to the boy's complete submission, and ultimately silence.

Paul followed Laura's instruction and stared intently at the audacious girl's unveiled vagina for only a few moments until his soft cock began to rise rapidly. Paul tried to control it, or at least to slow down the impending erection, but it surged upwards despite the hammering it had taken, revealing the bruised balls underneath.

'Good boy,' Laura crooned, 'now just open you legs a little bit further so my little sister can see your nice big balls a bit better.'
'That's beautiful' she praised snarkily as the terrified boy complied.
'Now we're going to give you one final kick in the balls, so you remember what we discussed.' Laura warned Paul while encouraging her younger sister to action with the same statement.

Paul desperately clutched his throbbing balls, laying otherwise motionless beneath the triumphant girls who had reduced him to a whimpering wreck.
'Hands to your sides!' barked Rachel irritably and was surprised to see him quickly comply, too scared to defy the girls even if it meant aiding their cruel finale, crying uncontrollably, tensing with dreadful anticipation of the punishment to come.

Rachel shrugged unsympathetically, taking a moment to examine the throbbing erection, then took aim at the swelling red targets on which she has by now practiced extensively.
She took a step forward into the V of Paul's spread legs, drew back her shapely young leg, then smashed her foot into the boy's tautened balls. Paul screamed pitifully, his exhausted body animated reflexively, twitching off the ground as his muscles spasmed uncontrollably before giving out completely, leaving him still, ****, and smashed to total defeat by the girls next door.

Disdainfully, the sisters stepped onto and over the boy as they slowly proceeded towards the elevator, leaving the body of the pummeled young man sprawled in defeat on the basement carpet.
The girls left their playroom with the confidence that Paul was dejected so completely he'd keep their secret, and by extension, his balls intact.

'I know who we're doing next' Rachel smiled devilishly at her older sister while the elevator slowly made its descent to the basement.
The sisters entered the car and disappeared behind the closing doors.