You yelp as something slams into your chest from the box you've opened, nearly knocking you back as your arms become trapped to your sides. The goo is strong and sticky, greedily spreading across your body as you try your best to struggle. Any protests are smothered by the slime covering your mouth, which shifts into some sort of muzzle before your eyes are covered as well.
You squirm as best you can, even as large plates start to grow across your body and a newly sprouted tail practically trips you up. Your legs bend as you stumble about, paws pressing against the floor before you fall. You don't think you can stop the change anymore...