A Succubus's Big Mistake (futa/f male/futa, hyper cock, cum inflation, growth)

“Oh God I can’t stop cumming!”

Grace rolled her eyes, her deep red irises nearly sliding completely under her heavy lids. His orgasm could barely be considered average! Still, she bobbed her head up and down rapidly, her long tongue snaking down his member and wiggling against his raised testicles. A strand of pure white hair fell over one of her eyes, draping over the side of her face. Her plush, black lips were clamped as tightly around the bucking cock as they could, draining it of as much cum as he could  muster.

It only took the man a measly five shots, not enough to even be considered a snack, before his balls emptied. Grace continued to suck him even after he had run dry, doing her best to take him for everything he had. His meager load warmed her stomach, if only slightly, his essence invigorating her being. A hum rang out from deep in her chest as she absorbed his sperm. Finally after she felt like she had milked him for all his worth, she pulled back, releasing his enlarged phallus.

“Well honey,” she looked up at him, her tongue snaking out of her mouth and sliding against her plump cock pillows, “how about we mo-”

Her eyes widened as the large man in front of her began to teeter back and forth. Mouth agape and only the whites of his eyes showing, his head bumped into the dirty brick wall behind him with a loud thud before he collapsed forward. Black wings fluttering, Grace scurried to the side, her heel-clad feet clattering against the pavement. The man dropped like a felled tree, arms almost completely stiff at his sides, and slammed into the sidewalk. Grace shook her head as she stood up.

“One little orgasm? That’s it?” she asked to no one, apparently, her scorn-filled words drifting through the cold night air. She wiped at her bare, pink-skinned legs, her purple nails brushing away any grime that might have coated her skin. Her long tail flicked furiously back and forth, the pointed tip scraping roughly against the concrete causing sparks to erupt with every swipe. Grace took a moment to adjust her bra, black like the rest of her outfit, and one of the few articles of clothing she was actually wearing; her enormous breasts jiggled in the supportive garment, the same pink as the rest of her skin.

“And you’re still alive…” she stared down at the unconscious man, his body moving in time with his breaths, “worthless!” 

She punctuated her insult with a sharp kick to the man’s side. Still no response. Shaking her head again, she lifted her leg, and adjusted the strap on her heel, black of course, before stomping it back down onto the ground. Without another glance, she turned around and began to walk aimlessly - she had nowhere to be after all. She just had one goal: to drain enough humans to sustain her existence in the other realm again. She wanted enough for at least for another hundred years - well, a hundred years by human’s conception of time anyway. 

Strutting down the sidewalk, her eyes roamed over the many dilapidated buildings and pot-hole littered streets. Old and broken cars covered the area, and every house had metal bars fitted over the windows and doors. Rhythmic, bass-heavy music seemed to blast from all around her, providing a danceable soundtrack to the urban backdrop. Humans wearing tattered rags and sleeping on cardboard boxes filled

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