Emma’s body vibrated with demonic energy as she lay on the cold lab floor, her huge, tight-veined dick straining upward against her skirt. Dr. Rachel, a middle-aged woman with kind eyes and skilled hands, knelt beside her.

“That rod’s throbbing like crazy, sweetie,” Rachel whispered, unzipping Emma’s pants. The fifteen-year-old girl’s heavy white-and-pink tits heaved as she moaned.

“Tired of stroke-need-got to come… please,” Emma begged, her demon cock leaking pearls of sticky pre-cum.

Rachel wrapped her fingers around Emma’s meat. Her hand was warm, deliberate as she stroked the fluid from the slit down the length. The sounds were wet, rhythmic: _shlick, shlick, shlick_. Emma cried out, her hips bucking.

For Emma, the frustration was overwhelming—ever since she was taken as a baby, hidden here by her cold parents, Rachel has been both protector and caretaker. But now her sexual powers swelled. She couldn’t bear the idea of touching herself; she needed Rachel’s full hand, forcing pulse through every inch.

Rachel’s thumb circled the spongy head, smearing pre-cum against the purse-lips of Emma’s tight bung. The sting merged with pleasure. Emma writhed, her left hand gripping her own bare thigh.

“Harder! Your pussy… I want it all over my cock,” Emma whispered, her demon voice low and demanding.

Rachel leaned, letting her finger slip into Emma’s quivering womanhood—her wet, sodden slit—while still