Arousal.

"Yes! YES! I look like I did when I was 20!" Sharlene crows as all of the scars from three pregnancies and the associated rapid weight gain and weight loss start to fade to nothing.

"Oh thank you, thank you so much!" She says hugging Margret in a totally inappropriate way for someone she met less than an hour ago.

"Um if you would just let go there dear..." Margret says and then hurries out of the room as soon as Sharlene puts her down.

"What's next?" Sharlene calls after her.

"Just hold on a minute dear, you'll see." Margret's voice says from a speaker in the ceiling.

Sharlene sits on the exam table, not bothering to put her clothes back on, considering they've asked her to disrobe twice in a row, and waits, after a few seconds though, she starts feeling over heated, not in an uncomfortable way, but... ~Good Gawd I want to bang a thick ass rod so DAMN bad!~ Sharlene thinks to herself, not even realizing consciously as she does it that she is playing with her pussy with her right hand.

She is shocked out of her impromptu masturbation session by Margret's voice coming over the speaker again. "A panel is going to open in the wall dear, just pick one of the products to test and it should help with the side effects, m-kay?"

The panel opens just as predicted and inside are three interesting looking objects:

One is what looks like a pair of lacy silk underwear, except with a thick plastic patch running from just above the pussy to right over the ass.

The next is a little black box, about the size of a box of crackers, which has a complex set of glowing white seams, that run along it in various directions with no rhyme or reason that she can see.

The third is the one that gives her pause however: it's a large dildo sculpted suspiciously like her first boyfriends dick, only about twice as big.