She grows

Tutu groaned as her limbs were suddenly overcome by an intense soreness. Her body felt like lead, like the weight of her own petite frame was pinning her down to the bed. Straining to lift her head even off the pillow, she looked down at her body and hesitated. Were her feet always so close to the end of the bed?

She watched as her legs began to stretch, her feet growing larger and tearing through her socks as they quickly reached the end of the king-sized bed. She gasped as her hips began to feel tight in her shorts, but only for a moment, until they ripped them apart, leaving her over-stretched panties as the only clothing left on her body. With her muscles still refusing to cooperate, all Tutu could do was watch as she approached seven- no, eight feet in height, her legs dangling off the end of Lucia's bed and her head pressing up against the wall. Then, the feeling of her skin faded, and she breathed a sigh of relief as she stopped her intense growth spurt at eight and a half feet in height. But that only left the problem of sitting up.

Not a moment after she had thought it, a rush of energy burst through Tsutsuho, flooding her muscles with heat. Relishing in her new freedom of movement, Tutu sat up and ran her hands down her skin, feeling her muscles swell and pack onto her frame. She stood up, careful not to bump her head on the ceiling, turning around as she watched her skinny limbs turn to well-defined, athletic ones. Not obscenely muscled, but enough to show that she was certainly packing a punch. And Tutu had a feeling that her punch would be much stronger than her body should have allowed. Her hands wandered lower, exploring her curves and pressing into the dense muscle as if testing it to be real.

It was as her hands were making her way down her rock-hard six pack that her finger wormed beneath her underwear-turned-g-string. The piece of cloth, stretched to its limit and on a hair-trigger, couldn't take it. It snapped, flying off her and arcing through the air, falling onto Lucia's gobsmacked face.