AYBfim said:
Story from source:

Griz is a biologist. Primarily, she's studying gryphon DNA and how the hell cats and birds managed to fuse, who was fucking who to have that happen, and why there are so many different varieties. The big gal (6', or 1.83 meters) came over to 'Murica from Germany, in order to get some study on different variants over here. Problem was, she needed the extra monies. Well, she had HUGE tits, and a big ass, and a thick accent, so started flashing her biology for a little extra cash. Only softcore, though.

Thinking it was a shame, Queen Cobra decided to attend one of her shoots and convince the busty gryphon otherwise. Griz, being boisterously friendly, rejected the hardcore notion, but decided to have a drink or two and chat up with a co-worker from the studio. Cobra used it as an opportunity to show Griz a "magic trick." Cobra dominates not through physical bondage, but hypnosis. Griz laughed it off as pseudo-science. Until she spilled the beans to Cobra (halfway into trance), that the hardest orgasms of her life were from masturbation with butt plugs. She knew it because of her biology background- muscles in that area share a "clench" response during orgasms, which is where the pleasure comes from. If something is in the ass, it just clenches *harder* trying to push out the invader, but it's the same muscles... making the orgasm several magnitudes stronger as it tries, over and over, to clench harder and harder.

Fascinated by the scientific reasons for cumming her brains out to anal, Cobra put a post-hypnotic trigger into Griz's head so that the gryphon can no longer resist the need for a deep butt pounding. She turns into full buttslutt mode until she gets off with a toy or dick splitting her cheeks, or Cobra says the safety trigger. Griz is fully aware of the trigger existing, knows what it is, but doesn't know when Cobra will call or text the trigger to her. She LOVES it, having a light bondage kink, and made the swap to hardcore films specifically thanks to Cobra doing that to her. She also earned the shirt as a reward from "her Queen" after a screaming creaming to an equine guy. Not to mention an almost astronomical jump in pay...