The artifact of desire

In a small town auto repair shop, a young couple discovered a mysterious artifact that granted them the ability to transform into animals. The artifact was found hidden behind a loose floorboard in their garage, which they had been renovating. As they played around with the strange object, they realized it could make their most intimate moments more exciting. The man, with his long purple hair and Yuki's delicate features, found himself turning into a sleek black cat whenever he got too aroused. His partner, a stunning femboy with golden blonde hair and striking emerald eyes, often joined him in his animal form, transforming into a graceful white fox. Together, they explored their new powers, but soon discovered the risks involved in their transformations. One night, during a passionate session, they both transformed and found themselves trapped in an alternate dimension where their animal forms were permanent. They quickly learned that their new reality required constant sexual energy to sustain their existence. With no way to return home, they had to adapt to their new life, finding ways to pleasure each other while stuck as animals.