Night Walk (Vore Story)
He could feel the drake sinking deeper into him, his internal sac starting to sag outside of his body just a bit as it swelled and filled up - seemed like those walls just couldn't contain the meal he had caught!
Back to the Lab (Vore Story)
"I'll be there in like, 20 minutes..." Aren hung up the phone after saying that. The white tiger had been woken up from a pleasant dream by this phone call, which came from his friend Ishika. Ishika was a scientist working in the lab at Noire...
Anal Glands
They're small internal sacs near the anus of most mammals, and most of the time they don't give you any trouble, since they open and close by themselves when you're taking a shit." a few of the kids "ewwed" while others snickered.
Two Caves (Vore Story)
And so was the powerful smell of dragon musk, practically making the air inside the chamber as thick as cotton candy, and also doing a great job of making selicia a bit more compliant with her situation...johnny's internal sac had no hope of containing all
Halloween Party
His internal sac tensed and pulsed, firing his seed into the condom. pushing against her, he huffed as he rode out his orgasm before resting his head on her chest.
Mewtwo's Experiment - Part 1 (Vore Story)
"you are currently inside my internal sac. please, try to get some rest while i do the same." mewtwo continued...yeah, that wasn't too surprising. aaron was glad this wasn't the bladder instead, at least!
Intermediate Species Studies - Chapter 5 - A Brief Interlewd
Clearly he could not fit both a big crocdick in there and also the entire contents of that internal sac.
In Over Their Heads (Vore Story)
Finally, the question of the lizardfolk's anatomy had been answered; below the base of his shaft was an internal sac, the walls of which were not very interested in expanding beyond what they absolutely had to.
Acquiescence
Hissing and growling as he spilled the contents of his internal sacs deep into the gryphon's ass najiri was not prepared to actually have his seed well up inside of the gryphon's depths only to feel it run backwards out and then down onto his exhausted scaled
Kaa’s Punishment, Setar’s Reunion, and Mowgli’s Choice
The bulge of the internal sac thickened in width as its size increased with now over 20 feet of snake in it.
Torvik's Journal: Part five
His rectum squeezed tight as his internal sacs contracted clamping down on the throbbing cock inside making his first heavy shot of cream that much stronger. it was followed by an even greater one gagging the dog on his cock as it shot into his throat.
Torvik's Journal: Part six
He asked waving a paw over his own crotch his internal sacs still left a slightly visible bulge but now he had to look to see it. the older dragon smiled wondering how much of the conversation he actually picked up on, obviously not enough.