Stealthily follow her and keep watching

All thoughts of the Incident fly straight out of your head, all you care about is seeing more of this gorgeous young woman.
Creeping along the clothing racks and displays you keep pace with the woman until she arrives at the lingerie department where she unceremoniously dumps her shopping basket on the floor and jogs towards the display holding the most revealing bras and panties she can see.

You watch her intently as she happily hums to herself while looking over various bras and panties, occasionally scooping up an item into her arms. If the end of the world is concerning her in any way she is doing an amazing job of hiding it.

You feel your cock growing larger, making a tent in your jeans as you watch this woman grabbing more and more underwear. You sincerely hope she doesn't just dump everything in the shopping basket and just leave.

“Now then, where…?” she says to herself as she scans her surroundings

“Ah!” she exclaims as she spots what she is looking for, another mirror to try on her newly acquired haul.

“Thank you god!” You think to yourself. The mirror is closer to you this time, maybe 20 feet. Glancing around you make sure you’re not visible before you unzip your pants and let your now raging hard cock out.

She places her newly acquired underwear collection on a nearby stool and positions herself in a way that her back is to you and her reflection is blocked.

The girl seems to be spending awhile adjusting her bra, then to your surprise she pulls out two folded wads of toilet paper and places them on the stool in front of her. Before reaching to her back and unhooking her bra and letting it fall to the floor.

“Wow.” you whisper under your breath, this girl must be completely flat chested if she needs padding while wearing such tiny bras.

Hooking both her thumbs into her panties she inches them down revealing her tiny pert alabaster buttocks. Shaking her hips slightly her panties drop to her feet and shifts to the side giving you a full frontal view of her in the mirror.

“What the…!?” you suddenly say without thinking and quickly clamp your free hand to your mouth.

It’s hard to miss… She has a small cock and perfectly shaven pair of tiny balls where you expected a pussy to be and as you expected a completely flat chest. Yet you cannot deny her body is truly feminine. Having a hidden obsession with shemales for a long time this isn't a nasty surprise by any means. Quite the opposite, your erection rages even harder that it’s almost painful.

She plainly didn't hear your surprised reaction as she continues unphased. Bending down to pick up a pair of black panties you get a view of her tight pink puckered asshole and shaven perfectly round balls.

“This is like a dream come true.” You think to yourself while yanking hard on your cock, now dripping pre-cum like a leaking tap.

Satisfied with her selection she pulls the black see through panties up her unblemished legs. From your vantage point you can clearly see her cock though the thin material of the panties. Quickly grabbing the matching bra she slips it over her shoulders and attaches it at the back without the padding, yet still giving the impression of a tiny set of tits.

“Mmmm.” She moans softly, pleased with the results.

Being completely naked and trying on lingerie in such an open area has obviously aroused her as much as it has you, which is evident as the small bulge on her groin grows larger. Pulling the front of her panties down she lets her now fully erect 4.5” cock pop free, making a loud slapping noise and it hits her flat stomach.

“Fuck I need to cum… now.” She groans under her breath.

Grabbing her cock with her right hand she starts pulling up and down, not satisfied with that she reaches into the back of her panties with her left hand and starts to slip a finger inside her tight asshole.

“Ooohhhh… Yes.” She groans with an expression of pure pleasure as she starts to push her index finger deeper inside her anus while tugging harder on her little cock which now dripping pre-cum from the tip.

You time your strokes with hers as you come closer to orgasm, watching intently as her finger plunges all the way inside her ass. Seemingly happy with the depth she has reached she starts slowly fingering her anus, her moans echoing around the department store. You wonder for a second if there are any other survivors here watching this wonderful show but you are quickly brought back to reality as her panties drop to the floor.

You guess she needed better access as her middle finger is **** inside her ass alongside the first. Her face distorts with a mixture of pain and pleasure as she drops to her knees, her legs unable to support her.

“Yes! Yes! YES!” She screams unabashed and unafraid of anyone who might hear.

She’s now yanking her cock as fast as her skinny arm allow, fingers pounding her tight asshole and face a mix of pure bliss and pain from her unlubricated finger fucking. You’re losing control too, grabbing a robe that’s hanging to the left you moan into it.

“I'm there!” she suddenly screams as she arches her back, completely losing control. The wet noise of her pre-cum is plainly audible, squelching in her hand.

“I'm cumming!” she squeals as ropes of cum shoot from her now bright red cock onto the mirror in front of her. You follow suit and you cum all over the floor, all sense of pride and morals lost in the strongest orgasm you can remember. You do your best to muffle your groans into the robe you have pressed to your mouth and nose.

Looking up you can see the girl is still trembling with the after effects of the huge orgasm she just had. Pulling her fingers out of her backside with an audible pop she sits back up on her knees. With the cum on the mirror and the position she briefly in it gives the impression that she is covered in her own cum.

“Oh I needed that” she mutters to herself pulling her panties up and tucking her now soft, still wet cock into them.

Picking a yellow dress out of her shopping basket she pulls it over her head and once again transforms into a beautiful petite woman. Dressed as she is nobody would ever guess her secret. You again follow her lead and zip yourself up.

Adjusting her clothes and hair in front of the mirror she seems to stand unmoving for an inordinate amount of time, nervously glancing around.

“Erm, is…” she trails off hesitating “is someone there?” she finishes in a weak voice tinged with fear.

All the muscles in your body freeze up, it is obvious she is talking to you. As far as you know you are the only two people left in the world so of course she is talking to you. You thought you were careful. You thought you had stayed hidden and quiet.