Wildfire Labs: The House Always Wins
He grunted as he flexed at his base, causing a firm undulation to ripple up his length and a hot undulation to swallow more of the stallion down.
Under a Burning Sky
Its body is undulating, squirming darkness. oily black and worm-like, it gurgles and hisses. dripping spines twitch in hunger. it is but one of many of its kind. nighmares glimpsed by madmen, dragged into reality.
[COM-25] Mounted Intimacy
In a sudden lurch, his knot slipped from his sheath and his shaft swelled to full firmness to be cradled between his soft belly fur and the ceiling of his mount's steadily undulating and shifting belly flesh.
Birthday Wish (Finished)
Her walls clinging desprately to it as it pulled out and then undulating and claming down on it as it pushed back it. her liquids started to drip slowly out of her now swolen, pink tinged lips.
Mochi's New Brood
Coming down from the mind shattering orgasm, mochi moaned, her walls clenching and undulating as she was filled and filled and filled, her belly looking thick with pregnancy.
Arc 1 - Part 6 - The Darkest End
The tunnel undulated up and down for about three hundred yards then came to an end at a wall of unmined coal.
Corruption Cave
Her paw, slick with the undulating goo that oozed from her engorged dick, groped at the hard flesh of her new member.
Hung Like a Bear
His ursine cock was pushed out of its sheath and covered with a slightly undulating latex sleeve with another hose attached to it. his broad belly was pushing the sleeve down so the tip was horizontal.
Mattimeo: Behind the Bushes, Part 3
Then undulations of orgasm hit them both, as orlando gushed his fatherly seed into the very creature his seed helped create. "daddy, that was so good," said auma. "we should do it again."
Close To The Heart (100+ Word Patreon Giveaway)
The timid worm felt a wave of warmth pass through eir form, the silky, undulating flesh around eir holding eir closely, stroking over the furred monster to reassure they were safe inside their lover.
Hazed (Vore Story)
All those drool strands, the undulating, red flesh, the gleaming teeth, that tongue that had just spent the past few minutes absolutely smothering him...and, oh goodness, the breath!
The Tentacle Trap
His eyes tried to latch onto flickers of movement in the darkness, the whole cave seeming to shift and undulate around him, one thing slithering forward like a snake as if to inspect him carefully. wait...