“So, you want to burst out of your clothes?” Mark asked. Eve aggressively nodded at his question. Her breathing was becoming ragged as her excitement grew. The jeans she was wearing were only hanging by the waistband. Her shirt however, while far too small, was completely intact. His own breath shaking, Mark scrolled over to Eve’s breasts and began manipulating the values. Not just size, but perkiness, width, bounce, everything. After a few minutes of fiddling, Mark looked back at his sister who was patiently but eagerly awaiting the change.
Hitting apply, Eve again groaned as the changes began. Her pathetic b cups swelled in size, filling the black shirt in seconds before slipping beneath it. Eve pouted as the shirt bundled up above her bosom instead of being ripped to pieces, but was still eager to see herself grow. Pushing out further and further in front of her, Eve’s breasts retained a shape between teardrop and sphere as the bottom of her boobs reached her belly button. Her grin slowly faded as gravity set in on her massive mammaries. Eve tried to keep her back straight, but she wasn’t strong enough. She bent forward despite her best efforts and soon was pulled fully to the ground. A huge moan burst out of her mouth as she landed on the incredibly sensitive mounds. She bit her lip as she felt the expanding flesh spread out across the carpet, stimulating all the new nerves and pleasure center Mark gave her. Once each boob had an individual diameter of 18 inches, they stopped. Boobs a full 3 feet wide.
Eve didn’t get a chance to revel as she again felt that growing sensation in her lower half. Her ass ballooned behind her and her hips swelled out passed her shoulders. She felt her thighs touch and purred in satisfaction when she felt her panties pop against her fat ass. Soon, she had an ass that matched her tits in size. She wiggled up and down a bit, moaning from the stimulation it gave her boobs, but grinning in satisfaction as her ass cheeks clapped from the motion.
“I wanted to make sure you could fit through doors. It might be a tight fit, but you should manage,” Mark explained. Eve didn’t respond as she was too caught up in her fantasies becoming reality. “I adjusted your back and legs, you should be able to stand now,” Mark informed. Eve’s lips quivered as she slowly looked at her brother.
“I-is that all?” She shivered.
Mark felt a shiver run through his spin at her words. She really enjoyed this. She wanted him to change her. Make her completely his. Was this all?