Cookie dough transformation: full body inflation, subject end up as an enormous pile of cookie dough. WARNING: if left unchecked, the subject may never stop expanding

"Cookie dough transformation: a full-body inflation transforms the subject into an enormous pile of cookie dough. CAUTION: If left unattended, the subject may never stop expanding."

How about this: "An individual undergoes a drastic metamorphosis, becoming a colossal amalgamation of cookie dough. However, this process can spiral out of control, ultimately resulting in an endless expanse of dough that can never be contained."