"What?" you mutter. This is all growing too weird. "Are...you are vampire?"
Bram looks at you, smiles and nods. "Don't worry, I'm not going to make you into a vampire."
"Oh, good," you reply. You start drinking the beer.
"I wanted to give Vlad a werewolf," replied Bram.
"Hah, very funny," you reply, glancing out the window, noticing the big full moon in the night sky, taking another long gulp of beer. You catch a glimpse of yourself in the bar's mirror. Your eyes have turned a dazzling yellow and you have a deep five o'clock shadow all over your face. You turn to Bram in a panic.
"Me?!" you exclaim.
"And why not?" he replies. "I think you'd make a fine werewolf."
"How?" you manage to get out as the changes start happening faster. Your fingernails push out into claws. You feel your ears slowly stretch out to points.
"The potion was in the beer. So much easier than the usual method," replied Bram.
Your feet stretch out and rip through your sneakers, becoming large paws. Your pants and shirt rip, revealing tufts of the thick, brown fur your body is covered with. You watch the changes happen in the mirror behind the bar. You open your mouth and find your teeth have grown out into sharp fangs. You grip the edge and watch with fascination as your face pushes out into a snout and your ears shift to the top of your head. Your werewolf insticts kick in and you follow Bram out of the bar.
I think I might like this, you think to yourself, marveling at your new werewolf physique.