Patience is a virtue, you have none

Laying next to Alana, you whisper in her ear. "Would you like bigger breasts?"

She giggles. "Mm, why not."

You place your hands on her breasts. You feel them grow from ample to large to the same giant perfection as yours. Alana moans.

She touches her breast flesh and shivers. "Ooo." She tweaks her nipple. "Oh!"

You interrupt her exploration. "Would you like a sexier body?"

"Yes."

You rub your hands up her legs, caressing her butt, slimming her waist.

Alana idly fondles a breast, while she allows her other hand to roam. Her body is an altar of sexuality. She is ready.

"Would you like to see into the hearts of men?"

She gives you a puzzled look, then says, "Yes."

You touch her face and watch as her eyes change from doe eyed brown, to exciting red slits. Her fingernails grow long black and oh so sharp. You allow your glamour to slip.

Alana looks up at your shiny black lips and fanged smile. "What the fuck are you!"

She jumps up and bolts like a rabbit.

"Shit!" You swear. Your sister to be is running loose in the city naked and half transformed. You could give chase or perhaps make a phone call.