>>11346861
Granted, you have been cursed with legendary bad luck. Anywhere you go, misfortune will follow, ranging from minor inconveniences like misplacing your car keys for several precious minutes when you're about to be late for something; to more serious stuff like small earthquakes. You are, in short, a living bad omen.

To counteract this, you visited a witch, who explained that she doesn't know a blessing strong enough to counteract the curse. However, she could still pile up an additional curse on you; so she cursed you to to become a black cat, but she deliberately left giant holes in her magic spell. For example, she worded the curse so that you'll be "doomed" to become a black cat until the day you'll repent for your sins by... deciding that you don't want to be a black cat anymore. But be warned, for if you decide to become a cat again, you shall become a black cat again! Until you won't!
>(random thunder sound effect)
In practice, this allows you the free ability to shift between cat and human forms at will, and even mix-and-match the two. For example, you could give yourself the ears, tails, cuteness and maleness of your cat form, but leave everything else human. You can even mix-and-match the *perception* that other people have of you: namely, you can make it so that people will treat you as human with full human rights, EXCEPT that they will be perfectly fine with your nudity because "cats go naked all the time". Likewise, a guy will not have a problem if you try to seduce her wife, because well, cats can't cuckhold you, right?
(Though be warned, the wife CAN reject your avances or even kick you in the face, as cats can do.)