Tina places a hand against her head. "Ugh, Andrew, what was that thing? I feel..." You scramble to catch her as she sways and gently guide her into a chair. Her eyes unfocus, mouth dropping slack as the changes commence.
You watch as her skin ages and sags, freckles becoming sunspots and blemishes. Her long hair turns silvery-white. Tina's breasts inflate and sag, wrinkles overtaking her face, and you hear her hips crack as they widen, as though they have bared many children. She looks up at you.
"What did you do to me?" she asks. But while she sounds old, it is not as kindly as you had hoped. Her voice is still strong and carries an authoritative weight to it.
She places her hands on the table and gently lifts herself up. Except, it can't be right, because as she does so, you hear the crack-crack-crack of her spine extending and growing longer. And as she rears up to her full height, you see rows upon rows of tight, thick abs being revealed over the table. Tina looms over you, now, an old lady with a huge 6'5 height, towering above your meek 5'10.
"I said," she growls, "What did you do to me, Andrew?"
"Umm, well, apparently turned you into my perfect fantasy?" you stammer. "Except, it must be malfunctioning, I don't like this, I'm not into my grandmother..."
But you're starting to wonder if that's true. Looking upon Tina now, a sagging yet toned giantess of a GILF, it stirs a strange desire in you. You've never felt so oddly attracted to something in your life. Tentatively, you take a step towards her.
"Watch it, Andy," she snaps. "No, you don't get to be turned on by this. Change me back now, or-"
Suddenly, Tina keels over, clutching herself. It seems another transformation is about to start.