Amber decides to just drink a little, if she barely drinks any will it really make that big of a difference? She brings the serum up to her lips and pauses, Amber is staring to doubt her decision again. Before she has a chance to back out, Bree comes out of nowhere and forces the vial into Amber's mouth. Forcing her to swallow the serum or choke on it. Amber chooses the option that (hopefully) wouldn't kill her.
The liquid starts going down her throat, making her body feel warm, "was there even enough in that vial to swallow this much?" Amber thinks. She looks down at the vial and sees that it's full. "Is it refilling itself?!" She thinks as she panics. Amber tries pushing Bree off of her and doesn't have any success until Bree lets go herself.
"Bree! How could you?" Amber yells. Before she could get anything else out she feels a tightness in her body, she knows the changes are about to start, and based off how much she drank, Amber is guessing she won't be too different than Bree.
"I'm pretty sure I'm done for, but maybe I can stop this with me." She thinks, straining to use her body as it's shifting around, Amber smacks the vial out of Bree's hands and watches it shatter on the ground. Some of the serum splashes up on Amber's clothes, instantly causing them to change into a sluttier version of themselves, her sweater shifts, causing it to show way more cleavage and getting shorter, showing her stomach, her heels get longer and her skirt gets shorter until all it's covering is her panties.
Amber finally notices the changes to her body as they are finishing up. Her breasts have ballooned out of her chest, they aren't as big as Bree's but with the right clothes they could look the same. Amber's butt has expanded so much that if her skirt Hadn't changed then she's sure it would have ripped. And finally she realizes her hair, which only had blonde tips, has almost reversed, turning blonde with very bright red. Almost pink tips.
Amber doesn't know what to say, "Bree, I-" she gets cut off as her mind gets filled with that familiar fog. Amber's nerdy stern personality is quickly getting replaced by a bubbly cheerful one. She thinks of her favorite thing to do. "I like to read books- I mean magazines- wait... why would I waste my time reading when I can like look for some boys to have fun with? *giggle*" the mental changes finish, leaving Amber with just a slightly higher IQ than her friend at 70.
Bree smiles at Amber. "Like, how do you feel?"
Amber's face lights up as she starts giggling. "Like, amazing" she says. "OMG I'm so sorry I broke that bottle thingy." Amber says with a pout.
"S'okay, you wanna go to the club? Like, I bet we'll totally find some guys there." Bree says.
"Ooohh, totally! You're like, so smart Bree!"