A Thief's Honour: Prepare for Trouble
She shivered, her loins buzzing with the purely physical ecstasy while the familiar deep satisfaction settled into her core, each heavy spurt spilling into her bringing with it the instinctual bliss of fulfilling a biological imperative.
The Pursuit of Happiness
Alix and tegon fulfilled their biological imperative. although none would want to admit they were put on the planet to fuck, like it or not, they flipped the switch nature begged them to flip.
A Snakes Awakening a Pokephilia Story
Evelyn knew that her heat was approaching, a biological imperative that made her body ache with a fierce hunger for companionship. it was a time when many female pokémon sought out males to ensure the continuation of their line.
Kiss of the Kraken
He felt an instinct, a biological imperative. he thought back to how big his stomach had bloated when the kraken had given him its royal jelly. now it was time for him to do the same...
Even if You Don't Kiss
But each sweet session ended in the same way, with the both of them succumbing to their biological imperatives. twitch, twitch, twitch, and her body eagerly swallowing every drop of the virile heat it demanded.
Time Magic
As the young nu mou's body tensed up, preparing to perform its biological imperative, abruptly a pale blue fire erupted all across his skin, jumping into the air. for a few moments, he was too surprised to really understand what was going on.
Amber & Jade [COMM]
Amber squeaked, whimpered, grunted and exhaled in a giddy rush as her own biological imperatives were finally acknowledged.
Contract Breeder: Nazo
His womb eager to take the dragon's massive clutch and fulfill that biological imperative. as nazo continued, his tongue met the lizard's clit.
A Commission Beauty and the best that just happened to have tentacles
They both were of the same mind, procreation - the biological imperative of all life. a rather thick tentacle curled and wrapped around one leg, snaking upward, to coil around the waist before the tapered end slapped against the heavy heaving bosom.
Cero Dactyl Unilete and Anax Agorean Spectrr
As it turned out, he used to know a naga that had that same rare ability to consume prey safely without any of that pesky death or digestion, and he was able to tell anax all she needed to know about the history and biological imperative behind such an anatomical
A Thief's Trials: The Samebito's Rubies
The biological imperative to pass on his genes, to ensure another generation of samebito graced to ocean blinded him to her youth and obvious unpracticed body.
Atomic FOX: Issue #3
They have a biological imperative to be as large as possible, something to do with hibernation instinct. what you did to him was like the completion of an entire lifetime worth of goals in a single instant.