Tiffany wants to find it out the safe way

Tiff was immediately suspicious. "Sooooo, what exactly is in those milkshakes you brought us, Ernest? These look awfully like something from the special menu."

"It's a surprise, I don't want to spoil it for you." Ernest tried to sound as innocent as possible.

"A surprise, huh? Okay then, if you want to play it that way..." She swapped Jess's glass with his, "Surprise me by drinking it."

Ernest audibly gulped, "I-- I don't think-- Okay, those are--"

"No, don't tell us what they are", Tiffany interrupted him. "You said it yourself, that would spoil the surprise. I'd rather you show us what's in those drinks." She grinned evilly. "I wish you'd finish the milkshake in front of you."

Ernest took a deep breath and began guzzling the milky, citrus-y liquid through his straw.

"Oh, and show us any obvious effects," Tiffany added.

In response, Ernest picked his drink up from the table, leaned back in his chair and presented his chest. A slight pulsing could be seen behind his shirt in the rhythm of his gulps. At the epicenter of the pulses sat two small lumps that steadily grew with each sip. Over time, lumps became mounds, mounds became hills, and hills became luscious orbs that rivaled Jessica's equipment in size.

Ernest put the empty glass down, and his hands to his chest. "Not gonna lie, that tasted pretty good," he said, kneading his new breasts, "Oh, and it feels good as well."

Not taking her eyes off the spectacle in front of her, Tiffany inquired, "So now that we know what those drinks do, what are they called?"

"They're Grapefruit Milkshakes," Ernest answered with a blush.

Tiff giggled, "Does the name have anything to do with the size of the boobs it makes?"

"As a matter of fact, yes," Ernest admitted, "You should also be able to order them in Orange or Lemon-Lime flavors..." He was still kneading the soft pillows on his chest, his body sinking deeper and deeper into his chair.

"Would you stop that?" Jess demanded, "Apparently it's not enough that I'm being subjected to rushes of pleasure every other minute, you also have to keep groping your parts right in front of me!"

Ernest meekly righted himself in his chair and put his hands at his sides, "It feels kind of uncomfortable to sit straight with this weight on my chest. I feel like I'm being pulled forward all the time."

Tiffany giggled at that, "I guess that comes with not wearing a bra."

"Could you maybe wish me a comfortable one? I mean, you're kind of responsible for me suddenly having boobs..."

"I'd say you have yourself to blame for that one. But okay, give me a minute," Tiffany concentrated for a while, "Ready Jess? Here it comes. I wish Ernest was wearing exactly the bra I'm thinking of right now."

Ernest instantly felt his upper body become lighter. "Thanks Tiff, I needed that." After a moment, he added, "Are all bras that much of a relief for women?"

Tiffany smiled, "No, not all of them. Yours has some special features."