... 6!
Claire hopped her extremely busty piece forward, and then looked at the crystal. It read, "Now with your chest, too big for your body, each step moving forwards, growing maturity"
Claire tapped her forehead in confusion. Then she let out a cry, as if in pain. As Tom watched, Claire seemed to cry out, before she suddenly jumped up. As Tom looked on, Claire's legs seemed to suddenly grow longer, making her taller. Her hip seemed to push out a bit more, and her hair grew longer. Her arms seemed to lengthen, and suddenly, Tom was looking at an adult Claire.
Claire looked at her. "Hi Tom" She said. Her voice had become more womanly, "older" is what Tom called it. "Um, Maybe I shouldn't be Tom anymore, because i'm a woman." Said Tom. "How about Julie?" She suggested, still trying to get used to her new body. She was feeling a bit cramped, due to wearing clothes way too small. So as she spoke, she began to remove her clothes, leaving her in the nude. Reaching up, she began to massage her E cups, letting out gentle moans in between each sentence.
"Okay, I'm Julie" Said the former-Tom-now-Julie. "My Turn"
Julie rolled the dice, and she rolled a 3!
As she moved, the crystal shimmers, and new words popped up. "BONUS CHANGE: LACTATION!"
"What does that mean?" asked Julie in shock. They soon found out. Julie suddenly began to giggle. "Stop it" she cries. Then Claire starts to giggle. Both women's breasts begin to swell. Claire's, beings the already larger of the two, swell to GG cups. Her nipples turn a dark, fertile brown. Julie's grow to EE cups, and her nipples become bright Red. Then the tickling sensation stops.
"What was that?" Asks Julie. Then they both look at their chests. "What are my tits suddenly heavier?" Asks Claire. As if in response, Claire suddenly moans, and her breasts jiggle. Claire freezes. "I heard a slosh" she said. Touching her breasts, she shakes them again, and this time, Julie hears a ~slosh~ from them.
Then something happens that surprises both women. A tiny white drop begins to leak from Julie's nipples. "Julie. You're lactating!" Says Claire in shock.