The four friends took a shot, and then a few seconds later they all started to change in their own way... Well at least most of them. Cody felt a little bloated as he became a bit chubby. As he patted and felt his gut giggle a little he heard Zack laugh and say "Wow, I'm so much taller than you now Jeff!" Jeff was a lot shorter, but seemed to lost her breasts... Then again she looked a lot like a kid rather than say a boy. With a much more narrow ass she had to keep her shorts up by pulling them up.
Jeff embarrassed shouted "Hey! How come Tony didn't change!?!"
Tony was looking at himself and answered "I don't know. It tasted like it was something though." Cody had a feeling what the vial was, but wasn't saying anything yet.
Jeff angrily said "I'm a little girl, but yall either get bigger or stay the same! How's that fair!?!"
Zack said "Calm down, no need to be a Bitch." The Trigger word did it's triggering and Tony took a deep breathe as his tongue elongated out of his mouth before his face elongated into a snout as golden hairs started sprouting all over his body.
Jeff said "Oh so... the change needed one extra step..." as his friend was turning into a furry dog, but then noticed Tony's chest puffing out and said "So a bitch is a female dog..." as Tony lost a few inches as her furry chest was puffing out into B cups, and she held them into her hands turning more paw like. Then she grimaced as one of her paws checked her groin as her manhood had shrunken away. Jeff patted her groin and found that she still had a penis... and something else beneath it, but what was a little more obvious was the small bulge in Jeff's pants.
Cody asked "You happy?"
Jeff said "Not really..."
Tony moved his lips a little feeling the oddity of the rather different face and said "This is weird, and I thought you were a girl Jeff?"
Cody said "I actually looked at the instructions. You are apparently female, Jeff is in a gender flux, and Zack and I are male. Still that round's over. I have a cancellation potion when this is over, anyone want out?"