"Nuh uh uh" Derek said playfully, pushing her hands off his needy member with great difficulty.
She pouted at him in a way that threatened to have him cum right then and there.
"Not done...with you yet babe," he grunted, his breathing slightly husky as he fought with his libido. "Time for 'cuter' can't wait."
He looked up and down her diminutive form.
"I want you to lose four more inches," he said, a little more in control of himself now.
Sonya gasped and shuddered as the warmth overtook her again, coalescing in her groin and chest as the collar's power shrank her even smaller. Her knees quivered slightly at the warm tingles reverberating throughout her.
"Oh my god!" the 4'8" girl squealed, her voice even higher now. "I'm so tiny!"
"I want your hair to turn dark brown and grow to reach your nipples." said Derek without missing a beat.
Sonya had barely adjusted to her new height before she felt a rustling in her hair. Her dyed locks were shifting slightly as they began to creep below her shoulders. Like water spilled on fabric, a dark coloration crept out from her roots and slowly slid down each strand of hair. The coloration and lengthening finished simultaneously, and she whimpered slightly as the tips of her hair brushed across her sensitive nipples.
"Hmmm" said Derek thoughtfully, "We'll have to do something about that won't we?"
Sonya didn't have time to question what he meant before he said, "I want your hair to be in two high ponytails, and your breasts to grow a cup size."
"Oohoh!" exclaimed Sonya, shivering at the sensation of her hair sliding against her smooth skin as the tips shifting upward. She felt invisible hands pulling and twisting it, separating her locks into two bunches before hair ties appeared, leaving her newly darkened locks in two high ponytails that sat closer to where her shorter red hair had been just moments ago.
Just as the ties cinched her hair in place, a pleasurable ache began manifesting within her breasts. Sonya hefted one of her B-cups, moaning as her fingers brushed over a rock hard nipple. The ache grew and grew within her tits before, with a feeling like water being pumped into a balloon, they began to expand.
Sonya heard Derek say something, but distracted by the sparks of pleasure in her engorging tits, she couldn't make out what it was.
The mystery was quickly solved however, as similar aches could be felt in her ass, her cheeks seemed to be clenching and unclenching of their own accord. On each third squeezing of her glutes, she felt some of the tension release and her ass stuck out a bit further.
A small orgasm wracked her body as her tits and ass finished growing. She gasped in pleasurable agony, holding onto the back of the nearby couch for support. She bit her lip as she rode the tiny wave, a bit of focus returning as it abated.
Sonya looked down at herself, her tits were pert and bouncy, sticking out further on her incredibly tiny form. Glancing back, she saw that her ass had become a firm bubble butt that smoothly transitioned to her skinny legs.
Derek looked her over with glee, his dick no less hard now than when she had let go. She was certainly a cute little thing, part of him wanted to take her right now, but maybe more could be done?