sbmorphical:

Commission captioned by The Expansionist. (Super hot) source video here.

The chair creaked as Rose tightened her grip, her naked body
trembling in the artificial light. The air in the small room was sharp
with the tang of ozone, indicating a powerful spell had been recently
cast. The young woman grunted as she felt the effects of her magic, her
body flooding with raw power as her sex prickled with hot, thick fluid.

“Ooaargh.”

A
deep, guttural groan was forced from her lips as her whole lower body
tensed and then swelled, the magical energy fuelling a very specific
type of growth. With a wet, muffled creaking sound the flesh of her legs
and buttocks expanded with fat and muscle, Rose running a hand through
her hair as a sticky string of sexual juices dripped from her pussy. In
the silence that followed the young woman closed her eyes, her chest
heaving with her heavy panting, as she felt the next spurt rapidly
approaching.

“Nnnnngh!”

Another
wet creak heralded the second growth spurt, her flesh thickening and
tightening even further. Rose growled her delight as her hands moved to
tightly grip her new assets, unable to resist any more. Where before her
hands could at least span the breadth of each cheek they were now
laughably inadequate, her fingers sinking into the brand new expanse of
pert, pliable ass-flesh. Her thighs rippled with new-found power, the
new mass comprising of enlarged muscle as much as fat, and Rose grunted
again as more juices dripped from her hot, quivering sex, her mind
engulfed in immeasurable pleasure.

“F-fuuuuuuuuck
yeeeeeeaaaaaargh,” Rose groaned deep and loud as the next growth kicked
in, her butt swelling outward with a muffled gurgle and forcing her
fingers apart and her hands outward.

The
young woman adjusted her stance to accommodate her enlarging thighs,
each footfall hitting the wooden floor hard enough to send vibrations
though the whole room, the lamp in the ceiling sent gently swaying back
and forth. 

Rose slowly opened
her eyes as the magic gradually faded, sweat glistening on her exposed
skin and her nerve endings alight with a hunger she had never felt
before. As her hands explored her new lower mass (and there was a lot to
explore), lightning bolts of pleasure erupting across every sumptuous
piece of skin they touched, her eyes fell to the spellbook open on the
cabinet in front of the chair. Her tongue delicately licked her lips as
she prepared the next spell…