Character: akhlys
Akhlys is a purple Gargoyle with red stripes.
A long time ago, she was just your general run-of-the-mill gargoyle, having some kinky secret thoughts but kept them locked up. Then she was captured by Double Helix Inc. DH, having never encountered a gargoyle before, wanted to use her to further their development of hybrid creatures. At first they just used her genome, resulting in many failed attempts, only a few species survived and of those, only the Leogarg (leopard gargoyle) Klaue remains to this date. While Klaue remained in the gestation tube, the head scientists got sick of the many failures before and decided to go another way: using her as a breeder.
First step was changing her so that she could be impregnated by any creature there was, be it human, animal or any anthro. This was tough to do, but it turned out that it was actually easier than expected as they could apply plenty of techniques developed by their gene splicing program. The unfortunate and unexpected side effect on that was that she somehow could willingly influence her pregnancy and could terminate it at any point, even preventing being impregnated in the first place - and she learned to do just that even during the test rounds that determined the change to be successful. Despite various theories being put forward, in the end nobody was quite sure how.
Of course, that was not an attribute that is welcome in a breeder slave, but fixing it proved impossible. So they did the next best thing: If you can't keep her from wilfully terminating her pregnancy, keep her from wanting to do that!
At first they flooded her systems with pheromones of all kinds, in the end removing any restraints she had. Instead of suppressing her secret thoughts, she embraced her craving to be dominated, her willingness to do any kink that would arouse her partner, her love to be penetrated in any orifice, her place on the knees in front of her partner. And, eventually, her desire to be impregnated if her partner wanted it to.
That may have already done it, but they wanted to go sure this time. After all, the procedure removed the restraints, but she was still free to disagree on her own, as her mind and logical thinking were fully intact, just her desires ran wild. So the next step after removing her mental barriers was removing any sense of self, she was to be a mindless breeding machine. They prepared the brain wiping and were almost ready to proceed - but then, due to an unfortunate series of events, project Ker III (or Klaue) got free and in his escape, he stumbled over Akhlys. Not knowing that, technically, she was his mother, she helped her escape with him anyway.
Today, Akhlys remains with all restraints removed, but her mind intact. She still loves to be used as a toy by any master, but has the sense not to choose greedy scientists as her masters. She decided to make her passion her job and earns her money working as a prostitute now, and for a premium, she might just let you knock her up
Good thing it never occurred to her clients to just ask if they can have her for free, as she'd probably be OK with that, she loves it too much