Stealing is bad:

You steal a pack of gum from your local superstore, unfortunately for you their new anti-theft system should combat that and the moment you go down a lane in the store you slowly but surely transform into a big-bottomed Milf.

The boss says he might change you back if you work for the shop the next few months, otherwise you can consider this permanent.

The One eye girl:

Lilly's new eye-drops cause her eyes to fuse together into a single cyclops eye.

The changes are temporary and she can change back and forth whenever she wants to.

You should always believe in magic:

You don't believe in magic, but you might change your mind as you slowly transform into a piranha plant.

The changes are temporary and you'll return to normal after taking a nap. Once normal again, if you use your phone within a few months you permanently transform again!

Don't steal food:

Mark was desperately low on money so he choose to steal some food. The store manager catches him and punishes him with magic, soon he rapidly transform into an anime girl Cardboard cutout.

The changes are permanent!

Your new job for the next 3 years:

Your boss spikes your and all of your co-workers food, and at the end of the day you painfully transform into a ditzy hooker, so do all your fellow co-workers. All you were ship to Russia to start your new jobs.

The changes are temporary and you'll return to normal in three years!

Your mind succumbs to the transformation.

Becoming your girlfriends Daughter:

You're shot with a TF dart and soon you very slowly age down and get unbirthed and then transported into your Girlfriends belly. 9 months later your GF is pregnant with you and soon you'll be reborn as her daughter.

The changes are temporary and you'll return to normal in a few days, but each time you cry the duration increases by a few years!