A thin but impossibly busty woman

Watching the transformation process itself was unsettling. The genie's body deformed like clay being squeezed into a new shape. It had already been in very good shape (cheerleading needs a lot of athleticism), but the normal thin layer of fat over its abdomen crept up into its breasts, which swelled impossibly. Valerie could see this happening, because its clothing had shrank to an outfit that left nothing to the imagination.

Valerie had always thought of herself as a sensible person, so it was a little unsettling to realise that this was apparently what she found sexiest, deep down. The genie looked like an anime character from one of those shifty porn banner ads. It wore nothing but a pair of way-too-tight pale blue boyshorts, a wet spot already creeping across the crotch, and a black lycra tube top stretched to its limit by the enormous breasts inside. Its erect nipples were two hard cones pressing against the fabric. Its breasts were the size of basketballs and stood high and pert despite the obvious lack of bra. Its waist was about as thin as was reasonable to hold in her organs, then tapered out to a perfectly formed butt and thighs. Its feet were delicate and slender, and it stood with its heels raised off the floor. Even with the expression of shock and fear on its face, its eyes were bright and startling, its lips deliciously formed. It opened its mouth to beg more.

"I wish Jessica couldn't speak without my permission," Valerie said.

This time, when it shuddered at the stimulation, those huge breasts jiggled like water balloons.

Hmm. Well, self knowledge was an important thing. What other weird shit was buried in her brain? Maybe she's experiment with the genie later. Valerie had always been pretty vanilla in bed, mostly because she was embarrassed to talk about sex stuff with her partners. It had taken her an embarrassingly long time to even admit she was bisexual. The genie opened up all kinds of possibilities for experimentation and discovery.

Like, apparently she liked the way the genie wriggled when she made wishes.

"I wish that the stimulation Jessica felt when I made wishes was three times as intense," Valerie said, "And, I wish Jessica couldn't come without my permission."

No sound escaped the genie's lips as the two wishes hit in quick succession. It dropped heavily to its knees and shuddered, those delicious breasts bouncing and swinging. From outside the room came the sound of something breaking, and laughter.

"Oh, that's right," Valerie said, "You've got party guests to entertain. Come on." She grinned. "I wish you'd stand up."