Dean put his lips to the little hose connected to the air sacs and began to blow. At first, he blew in small puffs, but after a while began to blow harder, pushing lots of air into the sacs. When he finished, the 'breasts' reached the size of watermelons.
"So that's how you like 'em?" Jenny asked. "Tch. Figures as much. I doubt there's anyone on the planet that could hold these things." She eyed herself in the mirror. Her breasts looked large and shapely (watermelons keep coming to mind). The bra did well to hide the inflated part; the air sacs must be woven between the padding and the outer frame. She put on her shirt over the bra to see how it would look, and found herself struggling to put the shirt on in the process. Finally she got it over herself. The neck hole now gave view to her cleavage clearly, whereas before it would hardly give a hint.
"Alright. I believe it's time for you to go," Jenny said to Dean. "I have many things to do, and you'd just get in the way."
"Wait!" Dean replied. "I'm sorry if I offended..." but he was already shoved out the door before he could finish.
Jenny moved back to her room to redress. As she stood there, topless, she looked back in the mirror to view her chest. "Peh, thinks I'm flat." she remarked, groping her chest. "Women are lucky to get past my size these days." She reached down for her regular bra and put it on, but found that it was tight. Entirely too tight, in fact, as the band would hardly reach behind her at all. She eyed the bra curiously. "Huh, that's weird. I was wearing this just a few minutes ago," she stated, and gave another look to her figure. Nothing seemed out of place. She felt over her large, voluptuous, melon-like breasts to search for some signs of growth, but couldn't reason anything. "Oh well. I guess I'll just wear that other bra then," she apathetically remarked, slipping on the inflatable bra and shifting it into place.
"You know, for Dean to go and buy a bra for me, this one is incredibly comfortable! I might have to thank him for this after all." With that, she put on a tanktop and took a final look in the mirror, admiring her prodigious bust. "It even holds well, too," she noticed, feeling even bigger with her clevage perfectly managed. She left her room afterwards and proceeded to perform her daily chores.