Overcasting 3: Chapter 2
rapid growth was more like gulping a shot of cold water on a hot day or a peck on the cheek rather than a long hug; great but short lived. it even spoiled the long, drawn out sense of her 'natural' enlargement. "oh, alright. go for it.
Errant Thoughts [TF M/F Horse]
Sharp aching pains dug deep into her shoulders as they widened as well, bones, joints and ligaments straining against the rapid growth of muscles deep within her body.
The Nightmare's Prey
They cannibalized them to fuel their own rapid growth to breed a new generation. the pins and needles sensation grew as they latched onto her womb and started to send small veins out to tap into her strength and what nutrition she could offer them.
Working with Animals, Chapter Three
He then let out a soft moan and clenched his toes inside of his shoes, not knowing that his ears had suddenly had a rapid growth spurt and where long, floppy donkey ears before he could even register the thought.
The Game Chapter 7
He gawked as a rapid growth of fur sprouted all over the other male's body to accentuate his already engorged penis. bobby's features stretched and altered, his feline features pushing past his boring, old, human face.
The Swamp
With a final rustling of leaves the rapid growth ended, and the night grew quiet again. a soft creaking came from the tree as it shuddered, and it was over.
Project Universe - Part 3
She felt like she weighed nothing at all despite her rapid growth. when her tail-tip had left the testing room floor completely, she waited for her body to fall back down. the moment never came. natasha gasped in a deep hiss. she could fly.
An Unexpected Adventure [COM]
Yolk had the biggest smile on his face when he realized that his rapid growth spurt had come to an end. "holy fuck, i'm gigantic now!"
Retrograde
It seemed that with zack's rapid growth, his curving ass cheeks and swelling balls had made the boxers cling to him with surprising zeal.
Jack Of All Horses
growth!
Case Closed
The neffel gland has caused significant nerve damage, but the rapid growth is making up for it. his brain is starting to rewire itself, mostly along the dragon dna.
Ross and Aiden: Got the Scent
That said, this story involves a lot of the male physical form with an emphasis on genitals, particularly with them being hyper-endowed, enormous muscles and the rapid growth of said muscles, an extreme amount of semen (cum) and copious amounts of heady musk