"Hey, could we hear what the redhead over there is offering?" Kirsty said. She pointed out a somewhat short and quiet girl who's cries were being drowned out by the people around her. She was wearing a fairly form-fitting orange tank top that showed off a bit of midriff and cleavage, jean shorts, and light blue stockings. The hosts got the rest of the crowd to quiet down so the girl could be heard.
"U-um, if it's ok, I'd like to give her my breasts too." The redhead murmured. She nervously grabbed and jiggled one of her C-cups as if to clarify. "I know you just did that, but I-I don't want to trade for the huge ones you just got, I just want to give you mine and be done with it. I-I'd really like to be flat."
"Not a problem, that's more than different enough to be worth a few points!" Eric said. "Come on down!" The girl shimmied past the rest of the jealous but cheering crowd before making her way down to the stage. "What's your name hon?"
"Oh, it's Mary!"
"Well Mary, you're hoping to lose your boobs completely, giving Kirsty here a second pair in the process, is that right?"
"Um, y-yes!" The girl stammered. "I know mine aren't big enough to be an major inconvenience like the last girl's, but I still don't like having to wear a bra all the time, and I'm not bold enough to walk around without one, it's kind of uncomfortable anyway. Plus I just, um, I think I'd look cuter with a flat chest." Mary blushed at her last remark, seemingly embarrassed about having been so honest about her motivations.
"Well Mary, you've come to exactly the right place!" Eric declared. "Now Kirsty is already undressed from her last round, so you're gonna have to catch up with her."
"R-right, of course!" Mary said, steeling herself before pulling off her tank top "Oh, b-but I don't lactate like the last girl, so I don't know if we could use the drink from last round."
"Oh come now, don't underestimate our pharmacists!" Tanya countered. "Er, scientists? Doctors? Well whatever we have, show them a little faith!"
"First though," Eric interjected, "we're gonna need you to show Kirsty, and the audience, just what you're putting on the table!" Mary blushed, pulling her bra off of her chest with a slight jiggle of her good-sized C-cups, the audience cheering her on as she smiled bashfully. Even without the support of her bra, her tits were plenty perky, and her areola and nipples were both a little bigger than you'd expect to see on breasts her size. "And we're not just looking at a great pair of tits, we're looking at another 5 points for Kirsty, as long as she's up for anything! What do you say Kirsty?"
The crowd roared as the busty young contestant thought for a moment. She had psyched herself up for swapping things out, but the idea of getting new parts entirely was news to her. That being said, she couldn't think of much of a reason not to, especially with another 5 points on the table. Besides, she found herself getting a bit wet at the thought of having four perky tits. She grinned at the thought of flaunting them to her no-longer-bustier sister.
"I'll do it!"
The crowd roared in approval as Tanya quickly cut in with their next question.
"And are you wanting to use the machine this time, or do you want to keep the point train rolling with one of our tinctures? You're off to a fairly strong start, but why not grab those extras?"
Kirsty considered her options as Mary slid down her panties, joining Kirsty in nudity.