He pushed harder and collected sex juice pooling around his cock on a fingertip.
“Stick it in me; stick that finger in my ass.” I sighed, much louder than I meant to be. He didn’t seem to mind.
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As the rest of his cock wrestled inside my sex, half of his sex-wet finger slid inside my ass. He pumped deep, straining to cram as much inside me as would go, and rotated the finger in my asshole.
“I feel so full, so, so, full. Keep...fucking...me.”
I had long since started to breathe harder, and sweat trickled down my neck, soaking into the belt that held me down.
“Does my slave want it,” Dr. Blumfield said through gritted teeth as he pulled his cock out until I felt his ridge, “hard?” He shoved forward, balls slapping against my flesh, every ounce of my being alive with the stretching, the sparks and energy that spread out of him and into me.
“Hard?” he repeated, pulling back and driving in all the way. His tip barely reached the back wall of my pussy and, like everything else, hurt terribly at first and then became just one more source of deep, wet, body-wrenching pleasure.
“Harder?” He pulled out and rammed forward again, somehow harder than last time. I screamed each time he drove. He timed the rotations of his finger with his slamming fuck-strokes. Before long, I felt a strange shaking from deep inside my body. Somewhere between my belly and my pussy, a deep, sweet ache welled up.
“So wet,” he said with hitching breath. “This pussy is so wet, so wet. I can feel you gripping my cock. Talk, slave. Tell me how it feels to be fucked this hard. Beg me to come. Beg for my cock to fill you up. Beg!”
“Yes – yes sir,” I said, trying to catch my breath.
“My, my pussy hurts so badly. Your cock is bruising me. I can feel you against the back of me; it feels like you’re so big you’re in both holes, filling me up. Oh Jesus, yes!” I had to gasp and catch my breath for a moment. “Yes! Your slave wants you to pump her full. Pour so much cum inside her that it drips out as you fuck her more. She wants to squeeze your dick and milk out every last drop. Please!”
He grunted and adjusted his hold on my thigh. Bracing himself against me, Dr. Blumfield was pulling all the way out, leveling his cock and ramming all the way in. Over, and over. Again and again.
I felt his body tense up. When he pushed against me, the muscles on the front of his legs were tight, clenched, and hard. I opened my eyes and saw his jaw bulging as he gritted his teeth, trying to keep from coming as long as he could.
Just then, that wave of hot energy slid over and through my cunt, filling up the spaces he left every time he stroked away, and when he pushed in, it surged up my spine.
Every ounce of my strength squeezed his cock. The walls of my pussy began to convulse in cycles of tension and release.
“I’m – I’m gonna come,” he grunted between his teeth. “Beg me to fill your pussy, slave!”
“Yes sir, yes! Please, please fill your slave’s sloppy pussy. Shoot all that cum in me. Don’t let any drip out. I want to keep it all in, feel how warm you are, please!”
He surged forward again, hips slamming against my helpless frame. Harder, harder, again, again.
The doctor sucked a breath deep into his lungs and held it for two pumps, then let it hiss out between his perfect teeth. He hunched over, putting his hands back on my sides, squeezing me hard.
“Squeeze my cock,” he demanded, “milk me, slave! Now!”
For some reason, those words pushed me over the edge. The electric surges in my pussy turned savage. My walls convulsed, my asshole gripped his finger, and I moaned so loudly that it might have sounded like a sob. I felt my sex squeeze him in waves started at the base of his dick and moving all the way up him.
I closed my eyes and used every ounce of strength I had to squeeze him, and at just that moment, I felt his cock jump inside my body, and seem to grow even bigger than it had been. Then, a half-second later, the first burst of his sticky, hot cum blasted inside me.
My vision went white and I wrenched my ankles and wrists. The biting, pinching sensations joined the squeeze-and-release of my sex and pushed shuddering waves up and down my body. And then, for the first time, my worn out little pussy pushed a gush of my own juice around his cock. Again I clenched my pussy muscles and again I squirted as he sucked another breath and pushed forward one last time.
He stayed that way, inside me, sweating, breathing, and softening, for more than a minute. When Dr. Blumfield finally pulled out, a trickle of our mixed juices slid out of my body and between my legs.
***
“Remember our arrangement,” he said as we stood, staring at each other.
I rubbed my wrists. No marks, but the burning felt a little like a brand. But, where the belts chewed at my ankles, faded red rings were barely visible.
Overwhelmed is not too strong a word for how I felt.
Dr. Blumfield pushed the button on the intercom. “Right, examination is finished. Please help Alex with an appointment for one week from today. I need to follow-up on the procedure. Make sure everything is going as planned.”