Katie looked up at Jen from her rippling stomach, the six pack ab muscles were still clearly distinct even as she relaxed them.
“You mean you can do even more?” She asked, her face lit up in excitement.
Mia meanwhile was squealing with delight, she ran up and poked her eldest sister in the belly. Katie beamed and tensed up again creating deep valleys in her abdomen, squeezing one of Mia’s fingertips in one of the folds. Mia pulled her hand away giggling.
“What more are you thinking sis?” Jen asked coyly, she had a pretty good idea but better Katie voice it herself.
“Well,” Katie pondered lowering her shirt. “I’ve always wished I had a proper fitness model physique, tall and super sexy but also real strong.”
“But you are tall and strong Katie.” Mia chimed in.
“To you maybe,” Katie laughed. “Not to Jen though.”
Jen looked at Katie. She’d always been athletic but her figure was more lanky than anything else. She’d never been able to pack any muscle onto her relatively shapeless frame. She now looked positively tiny next to Jen who’d recently grown into a 5’6 tall, buxom bombshell figure.
“Ok sis, I think I’ve got a pretty good idea of what to wish for you.” Katie grinned jumping from one foot to the other in excitement.
“Cliodhna, I wish my sister Katie here was a super sexy 6’ tall muscular fitness babe.”
Cliodhna cracked her knuckles and rolled her head around, limbering up. “Yes mistress. This is going to be fun!”
She shot the golden ray into Katie who once struck doubled over as if she was in pain.
“Katie!? Are you ok?” Mia squeaked.
“I’m, I’m fine sis.” Katie panted. “Oh... oh wow...” She straightened up breathing heavily. Her grin began to return. Suddenly her limbs and torso began to lengthen. Her original height of 4’7 had only been an inch taller than Jen before her transformation. Her sweatpants ran up her shins as her shirt did the same revealing her tense and sweaty abs. She held her hands up marvelling as they grew further away on ever longer arms.
“Look look Katie’s got boobies!” Mia cheered,
Katie peered down and clutched her formerly modest chest.
“Whoa howdy there, ow!” Her sports bra was starting to bite into her ribs. She reached down her top and rolled it up and over, her breasts now freely dropping down and hastily expanding to fill what space was left inside her tshirt. That shut up Mia’s teasing, she could only stare.
Katie suddenly found herself off balance. Her lanky frame was now even lankier and her breasts felt like they weighed a ton. It was now a familiar warmth spread through her body. Her back strengthened and she was able to regain her posture, her shirt ripped at the seams under her arms as her upper body widened slightly and the warmth spread upwards.
Her shoulders tensed then they bulged outwards tight against Katie’s tanned skin. The effect cascaded down her arms as her triceps and biceps appeared from within her featureless stick-arms. Then an all new sensation began.
Her butt swelled out behind her altering her balance again she stumbled slightly, feeling her panties ripping inside her now strained sweatpants.
Her legs quietly pumped out and felt tighter in her sweatpants but aside from how they now strained the fabric at her thighs and calves she couldn’t see the details of what had happened down there. The warmth began to leave her but in its place Katie felt a quiet energy she’d never felt before.
“Holy fuck.” She finally breathed her grin forming into a full smile. She flexed her bicep watching it form from her shapely arm into a tense ball “I feel amazing! Thank you sis! You’re amazing!”
“You LOOK amazing!” Jen said beaming.
“Me next!” Mia said jumping at Jen.
“You’re only seven, what do you want?” Jen asked.