You and Jack continue to drink through the night.
You don't change any further: you're just a human covered in fur, with some dog pads and claws on your hands and feet. You can no longer stand like a man, you can't speak, and you're compelled to obey Jack, your roommate.
The liquor makes the two of you do strange things. Jack strips off his hot wolf costume and dances with other guys. You have a very meaningful conversation with a fern plant. The two of you visit the bathroom several times, but eventually the party winds down and you have to go home.
Tottering on 6 legs, the two of you exit the party and hail a cab. You get in, and the cab drives off.
Jack gives an address, but promptly is out like a light. You join him.
When you wake, you're still in the cab. The cabbie is pulling you off Jack. You fall onto the street.
Unsteady, you still manage to get up onto all fours. The cabbie pulls Jack out, disgusted. He takes Jack's wallet out.
"Bark! Bark!" You shout at the guy. He can't take Jack's money! The Cabbie ignores you, pulls out some money, and drops the wallet on Jack's chest. You're not sure how much he took, but right now you don't care. This guy's a thief! You surge forward and give the cabbie a good bite on his ass.
He yells in pain and clocks you with a meaty fist. Down you go.
Through stars, you vaguely see the cab pull away. Jack is still unconscious at your feet, and your apartment is nearby. The very distant sober part of your mind reminds you you're naked and turning into a dog. This would be a GREAT time to get away, and maybe find a way to change back.