Neil's Tour (Vore Story)
"your first stop on the tour will be the rumen. the rumen is the site of microbial fermentation, and is mostly free of traditional digestive enzymes.
My Little Fantasy: Sephiroth is Magic!
The mystical mare felt like a foal, her rumen full of flittering flutterbies. the materia mutant returned her gaze, lovingly locking his luminescent lookers with her cerulean saucers.
Rescue
A kick from inside the cow’s rumen filled fyn with a mixture of relief and anxiety. the cat was still alive, but for how long? if they didn’t get her out soon, she would drown in the cow’s rumen fluid.
Tummy Tour (Vore Story)
In just a few minutes, neil would have an extremely full rumen, and that was just a fact of the world that the two of them were living in now.
Fluffy Topping (Vore Story)
The rumen didn't do much actual digestion, mostly just fermentation, so the moth was entirely able to kick and squirm and move around in there. "ooph, almost forgot about you.
ND8 - Cow Chow
A long, resonant groan traveled through the rumen, then his environment was shaken up by a slap on the belly from the outside.
Space Sheep 9
Lying next to the ewe, alan ran his hand over her large rumen belly and up her deeply v'ed chest. he felt her hair thicken over her sternum that would have served her ancestors as padding when they laid on the ground.
Bugs In The Coding
Within the rumen, he was compressed and squeezed, and the first nutrients harvested for addition to lyra's full, matured tits.
Rodney and Lauren
It helped that she hadn't grazed in the intervening hours and the grass was now digested enough to pass further down, leaving almost her whole rumen to accept the new delivery.
Space Sheep 7
Alan would have been happy to stand like that forever, but the ewe's rumen had other ideas, and with a rumble from deep inside her, she gave out a tremendous belch.
Tales From The Bellhunterverse Ch3
She winced, swallowing hard to presumably force what gus could only assume was a particularly rancid lump of rumen back down her throat before continuing.
Under the Light of Algol (Commission For Wolfboy9x)
Feeling his insides roil, his stomach gurgling and burbling louder, then bloating, _hard_, becoming taut and round and fat...he was still wearing that button-down flannel and the undershirt aneath it, but his belly, masking the changes inside it, his new rumen