At last, Ty and Emma left the café and were now travelling down the sidewalk towards the library several blocks away.
Standing next to her now, for a view of the fun, Ty marveled at how huge and full her breasts had become. They had experienced a few moments of starting to sag before Ty had willed them to tighten and firm under her shirt. They had obeyed beautifully, now big and perky. She had started as a little B cup. And now Emma was a huge D cup. She had certainly noticed she was still swelling now, occasionally shifting her coat and looking down at her cleavage in shock. It was hard to ignore her more sizeable and obvious nipples protruding, even obvious under her coat now. Her blouse had began to tug up from her waist slightly too.
And still Ty let her grow and grow as they walked. The 15 year old nerdy girl had a rack to rival older girls. As big, round, and shapely as honeydews.
"Hey, uh, Ty..." Emma finally stopped, gulping deeply.
"Yes?" He said.
"I'm... I mean..." She looked down at her chest with nervous eyes. "I know you're trying to be nice, and not stare, but... I'm... I'm bigger, right?"
Ty nodded gently, smirking. "Um... a lot."
"What the hell?!" Emma screwed up her face in confusion. "I've never had this happen. It's seriously weird! I thought it might be, like, puberty or hormones or something. A little, like, swelling. But they're still going!"
"Yes." Ty grinned a lot. "I don't mind."
"No?" Emma put her hand on her hips, snorting amusedly. "No, I guess you wouldn't. Who wouldn't want a girlfriend with an inflatable chest?"
"Does it hurt?" Ty blinked, getting in for a better closer look at last.
"Uh, no." She blushed deep red. "And I kind of do like them growing like this. I always wanted a, uh, more ample chest."
"I wonder how big they'll get before it stops." Ty felt himself blushing too.
Emma looked down at her breasts and smiled. She opened her jean jacket and both of them looked on in awe. "Wow. Not much bigger, I hope. They're so heavy already, and, uh..."
"Perky." Ty whispered.
"Yeah." The girl agreed. She looked up at Ty and blushed deeper still. "I like you looking."
Oh God! Ty felt his pants tenting.
"Uh... so..." He gulped. "Can I... touch?"
Emma gulped too and smiled widely. "I... I was hoping you'd ask. Let's go somewhere more private."