Investigate the settings menu

Mark navigated to the small gear icon and clicked, and a large list of drop downs and checkboxes appeared. Mark and Jill gazed at the menu, the seemingly infinite array of options daunting. Mark saw the awareness settings again and made sure to note where exactly they were for easy navigation. Below that they saw Mark: User[ON] and Jill: User[ON], which they surmised was the awareness settings for both of them. They also saw a section titled:'Alteration speed' which had Users set to 1 second, and all others set to zero, though they decided to leave this alone for now.

After scrolling a while they had noticed two options that had interested them: 'Enable global changes' and 'Enable Text Input'. They decided to enable both to give themselves an easier time making changes.

Jill suggested that they try out the Text input, which had appeared on the GUI as a text box. Mark thought for a second and then, with a slight grin entered:

Jill is as big a pervert as Mark

Mark looked looked over at Jill, and what had before seemed seemed a look of trepidation, was one now of *lust?* If he had been unsure about the look before, it was confirmed for him when Jill entered

Jill has big, jiggly DD-cup breasts

The front of Jill's shirt surged forward once again, and two glorious orbs were now bolted onto her chest. Jill unabashedly reached up and started groping herself. She lost herself for a moment in the pleasant feeling of her pliant breasts being kneaded by her hands.

"Wow, these are real. I mean they're, like, natural, not fake ones" Jill said, mainly to herself, somewhat forgetting that Mark was there. This statement gave Mark an idea though. He saw a small pen like icon next to the modification Jill had made and decided to test to see if it was what he thought it was. When he clicked on the pen icon, the text field opened again, confirming that it did allow you to edit modifications that had been made. Make decided to have a little fun with the distracted Jill and entered:

Jill has big, jiggly FAKE DD-cup breasts

Jill's breasts changed slightly, becoming slightly rounder and decidedly more fake looking and Jill's face contorted as she felt not the squeeze of her own tits, but that of silicone implants.

'Huh? What the fuck happened? Why are my tits fake now?" Jill said, grasping at her chest. She then looked up and saw the modified statement, then looked over at you and punched you in the arm, not that it really hurt or that even tried to hurt you.

"You dick, un-fake my tits, now!"

"Un-fake them yourself. Just click on the pen and edit it".

Jill threw one last glare your way, though it didn't have much anger in it, and restored her boobs to their rightful natural glory. She then typed:

Jill has a large, round bubble butt and a cinched waist that accentuates her curves

As soon as she had entered it, the pleasant feeling returned, this time in her ass and waist. Jill almost moaned as she felt her ass swell and her waist shrink. Once the transformation had finished she ran her hands down her waist to the large swell of her backside, and felt her fingers dig into the ample flesh. Jill turned to her brother with an almost manic grin and said "What do we change next?"