In the sterile glow of the experimental clinic, Dr. Cellia loomed over the trembling 20-year-old virgin strapped to the gynecological chair. Her emerald skin shimmered, tail swaying like a predator's promise. 'Listen closely, Mark,' she purred, voice sharp as a scalpel. 'You're my perfect specimen—virgin, untouched. This procedure extracts your prostatic fluid and seminal load for my reproductive needs. No pain, just a bit of discomfort when my tail stretches you. Your cock will thank me.'
Mark's eyes widened, sweating already. 'This is insane! I'm scared—what if it hurts?' He panted, heart racing.
Cellia chuckled, strong and unyielding. 'Fear is natural, but submission isn't required. My secretions will keep everything wet and dripping. Now, let's begin.' She secured the restraints with clinical precision, then positioned her tail's stinger at his exposed ass. Lubricant from her body—warm, slick—coated him as the tip pressed in, sliding deep to stimulate his prostate.
'Feel that pressure? That's your gland waking up,' she teased wittily. 'No blowjob today, but my tail's about to make your cock hard and throbbing.' Mark gasped, discomfort flickering but no pain, as the stimulation built. His cock hardened rapidly, pre-cum beading.
'Good boy—already horny,' Cellia noted, expanding the tail's end into a pulsing, vagina-like sheath that engulfed his cock. It milked rhythmically, wet walls gripping tight. 'Cum for me—let it flow.' He came explosively, cum spurting in thick ropes, prostate drained as she extracted every drop. Panting, he watched her tail widen further, absorbing him inside her body for the month-long uterine milking with tentacle probes. 'The real fun begins now,' she smirked, strong and in control.
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