You are waiting to see how the desire worked, when your partner leaves it, it looks calmer than usual, without any ugly smell, more muscular than before.
You decide to use this one the same, you enter the bathroom and it looks cleaner and more elegant, filled with water with foam and bubbles the tub, you enter to bathe in this, you feel very relaxed when rubbing your body, you feel your skin softer, you feel losing fat, You feel that you lose hair on your body, but on your head your hair feels bigger, feeling it on your back, also feels something strange on your head, you rub your chest, you feel much more sensitive, and it looks wider, by the foam you don't see much, so you stop and get up, grab a towel and clean your body, when you look in the mirror, you see someone quite different, long hair with 2 cat ears, 2 huge breasts, thin waist, widened hips, your flat crotch , a cat's tail behind, a really soft body, curvy, hairless, feminine.
You get scared grabbing the towel, because you became a cat girl, because your partner became a handsome boy, using the same bathroom, effect of desire, for some reason thinking about your partner caused you a strange sensation, you become paralyzed thinking what to do.