Flea Bitten. Chapter One.
Those people were still after him, even now, chasing him into the wilds his animal instincts told him to use. they wouldn't stop. alive or dead, they wouldn't stop. it didn't matter anymore at this point.
The Yogurt Instructor
Andy could feel it building up, his balls tightening as he thrust faster and faster while the man above him rammed him harder and harder, the sounds of sloppy sex echoing in the alley to the nearby pedestrians as the blushed, hiding their lusty animal instincts
Down the Rabbit Hole
Gazimon started to hump even faster letting his animal instinct take over as a fast bunny. gazimon moaned, "ahhhhhhhhhhhhh!" he has his orgasm inside dracmon's rear. gazimon pushed away and breathed heavily, "damn that was amazing."
Pokemon: Turning Over A New Leaf! - Chapter 2
I looked to see that persian had started to go absolutely crazy on her; his animal instincts kicked in. if i know my pokemon sex right (and you're damn right that i do,) then this kitty's about to give joy quite a load of milk.
Journeymen: A Bond Formed
They still possessed a lot of animal instincts, sex being the most prominent. they were treated as pets and second class citizens. however,all of this was far from marks mind.
ANUM CHAOS - Question from my mind Chapter 4-5 UPD.II!!!
Falys animal instinct takes over she and she starts to open w.a.s jeans from the suit. w.a. pants "that's non-fair. i am here, nude and you wear all." w.a. giggles and unwears falys shirt.
Chapter 3: Fair Trade
He had reduced himself to his animal instincts once before and nothing good came of it. he got up to stretch his legs and bumped into an orca that was passing. "watch where you're fucking going," the angry wizard spat.
Snow Bunny Ch.28
It had been a long time since the last time she had a worthy opponent to fight and it had been a longer time since her animal instincts had awakened.
Draco's Transformation
Maybe it was just the after effects of whatever strange transformation had occurred, or maybe it was some new animal instinct flooding through his head, but he felt like he could do anything.
Distant Earth CYOA part 6
"it'll be nice to have your sweet ass on board. " he muttered and winked as he passed, the hungry look in his eye made the rabbit shudder, some animal instinct told him a predator was hunting him.
The Deception Ch.3 The Passion
He lowered his head and sniffed the air to smell the sweet scent of her sex in the air and he knew that he wanted it but his human side was trying to push its way out to the surface and his animal instincts would have nothing to do with that and stuffed it
Bored, dumb dog. (requested story)
When combined with the animal instinct in the dog's mind, the chimera very clearly wanted to get some relief on the nearest available sexual partner.