A Quick Change of Clothing

"Before we go anywhere, let's get into something a little more suitable, eh?" said Jon.
"Sounds good Janie. I think I'll start calling you that now that Jon won't work anymore," replied Karyn. Janie just huffed and began digging through her backpack.
"Let's see... this must be for you, since all the tags say 'Lane Giant' on them," Janie snicked pulling out a slinky dress. "It seems to be the right size and it looks good enough. Go ahead and slide it on while I slip into mine."
Karyn took the bundle of clothing and turned around to start dressing while Janie struggled to get back on her feet.
"Now that we've called a truce, will you make me... not so pregnant?" She asked.
"Come, come. If I have to stay fat, you have to stay huge. Plus, if I try to change you again, I'll gain more weight. And I think you look very cute this way!" Karyn replied, spinning around to show off her new threads. They were tight fitting, but not unflattering to her greatly ballooned figure.
Janie fumbled with an enormous nursing bra, trying to fit it around her swollen breasts. "Don't worry. If I approve of the change first, there are no consequences to you."
"I still don't think it's very fair," Karyn pouted and tried to cross her chubby arms in front of her chest. "I want to make a stipulation so you can't transform me without my consent."
Janie finally clasped the bra and began to slip on a t-shirt that seemed a bit too tight for such a big gal and a pair of bibbed overalls.
"Sigh I guess, if you must..." she rolled her eyes and sheepishly forked over the stone, "but nothing to freaky. I'm way too big already and I don't wanna be stuck as a pair of underwear or anything."
"Ooh! Goody!" Karyn bounced, causing chaotic motion throughout her greatly expanded form. "Oof! No more bouncing then. Anyway, I wish..."