Jack leads you through the party, and it's a little scary - how can all these men be able to change people into animals?! And you're one of their victims...
You stop, and Jack downs some whiskey. "Aah!" He says with a smile. He sees you looking up at him, and smiles. "Want some?"
Your eyes go wide. Jack nods to the bartender, and he hands a dog dish to Jack, who puts the dish on the floor. "Drink up!"
The dog dish looks like it's clean - but it's a DOG dish! After looking at it for a second, your "bad dog!" voice starts speaking up. "He said drink up! What are you waiting for?"
You don't see the harm, so you dip your head down and drink from the floor.
The whiskey goes down like paint thiner, and you shudder violently at the taste.
After, however, you get a very content warmth in your belly that loosens your muscles. You feel the change now - you intensely feel the fur on your forearms as it creeps up, covering all the way up to your biceps, and the same gray fur spreads and covers your chest.
The fur ripples and covers your legs, too. Now you're human shaped, but are completely covered in shaggy gray fur. The mop of fur on your head obscures your eyes.
With a sense of inevitability, you drink the rest of the whiskey and get good and drunk. Jack ruffles your headfur where you sit, naked in your fur, on the floor.