I watched them, completely caught up by the raw demanding fucking they were subjecting each other to. I was so enthralled by their performance, I forgot about whipping Dee.
He slows his thrust and the slaps on my ass. "Come on stranger. Get your ass back to work. You aren't done yet." I dig my nails into his chest. Looking back to my sister, "Come on Josie. What gives? Don't you like pleasing me?"
"Sister, If I don't shut off the timer all three of us will get a jolt to remember" I told DeeDee as I started to thrust back harder, the timer safelt reset. "Now we've got ten minutes of safe sex"
Chuckling at my own lame joke I grabbed her hips and yanked forward unexpectedly driving my cock hard into her.
A gasp escaped her lips and I smiled "I found the twisted sister, didn't I"
Biting her nipple I stretched it as I leaned backwards, then released it as I pulled her to me again.
"Why don't you confess and tell me what REALLY gets you off"
I coaxed her "Then we can quit wasting time"
A third hard thrust draws another gasp and a smile from her lips.
"Give her a couple of strong ones" I prodded Josie, looking at her standing near us the whip dangling in her hand "Your sis was about to share with us her naughty secrets"
My hands sliding up the strangers arms until our arms were in the air above our heads together, I grab his wrist. "This is what gets me off." I say as I push the button on the bracelet sending an electric shock through us all. My body spasms, not only from the current but also as a swelling orgasm shakes my body.
The electricity tore thru both of us, the sweat and body fluids making a perfect conductor...
"AHHHHHH" I moaned as the three second burst quit and my muscles became my own again. "You know you just knocked your sister on her ass?" I questioned, nodding towards Josie as she slowly rose to her knees.
Punching another button on the wrist band I gave DeeDee a brutal kiss, mashing her lips with mine before pulling back.
"Try it again" I dared her, looking into her eyes "This time its set for just your collar"
I laugh, knowing my sister fell on her ass, it was funny. He dares me to push it again. What if I get addicted? I reach for his wrist again. This time pushing the button. "YESSSSSSS!" I shout as the orgasm rips at my body. My nipples feeling as they would burst, his cock shocking every part of my pussy.
My cock already was already hard, but strangely I felt it begin to swell even more as the second jolt ripped into us, the length of my erection acting as the conducter for the current.
"AHHHHHHHHH" The word came, sounding harsh and strange in my throat.
Again my muscles spasmed and then became my own, and I laughed as DeeDee's eyes gleamed in pleasure.
"One more time!" I challenged, punching the second button on the wrist and offering it to her...
My God. This guy was as kinky as I was. "I accept your challenge." I said using my best poker face. Again I pushed the button, while looking straight in his eyes.
The current spread through us like wildfire. I couldn't help but smile feeling my teeth click together.
My eyes held hers as the current held us both...Not for the usual three seconds but for five times that. My cock was screaming at my mind, demanding a release...not from the erotic sensation of the voltage, but from the pressure that built to an uncomfortable level in my sac....
Eyes gleaming, my face contorted I waited the eternity as I crushed DeeDee's breasts in my hands, the current increasing my strength to a maniacal level.
With an almost audible click the voltage released us and I shouted in joy and pleasure, my cock celebrating in turn as it began to pump the contents of my balls into DeeDee's canal.
My chest heaving, the breath whistling thru my teeth as I recover I laugh with undisguised glee
"I can't believe you handled that." I breathed to the stranger. No one has ever been able to make me cum like that. "I must know, you got a girlfriend?"
I watched their bodies writhing in ecstasy and knew a moment of envy. I no more desired this stranger then I would a mongrel dog in the street, but I hungered for the completion of body that Dee-Dee just received. I briefly contemplated ripping her body from his and pressing mine upon him, but dismissed the thought nearly the moment it was formed.
As I turned from the two, I noticed, for the first time, that he no longer held the controller for the collars about our throats. I peeked at him from the corner of my eye and noted that he was still lost in the wonder of Dee's body and I smirked, just a little.
Bending down, I pressed my lips to his, blocking his vision as my other hand sought the small box on the floor.
Triumph roared through me as I grasped the metal with my fingers.