Imagine you get dragged down to a basement, get bound in a straitjacket, and secured with many belts in a small padded room only to realize you're can't move an inch, volnurable and unable to resist what happens next. You became an object.
Being an adventurer made you cocky.So cocky in fact that you started to threaten or just sometimes steal from stores. However, you robbed a powerful wizard who turned your body into that of a weak, horny and busty woman. Now you try and continue adventur