Try it out on a passing Velma

You look up at the passing attendees. The warm day has led to a number of wardrobe changes, and much of the cosplay is more revealing that it usually is at cons like this. Figuring you'll make this app have to work hard, you see a girl walking by in cosplay of Velma from the old sixties show about the hippies solving crimes with their talking dog. The girl is cute enough, but you figure she chose Velma because the signature thick orange sweater, glasses, and knee-length skirt probably reflect a somewhat average appearance. It's rather impossible to ascertain the girl's figure in the frumpy outfit.

"Excuse me," you say, waving your hand. She stops. "I love your cosplay!" you say, and a slight frown forms on her face. She knows it's unimpressive. "Can I take a quick picture?"

"Um, sure...," she slowly says. It's obvious she's concerned why you're asking, so you smile to help put her at ease. You raise your phone and the view through the app remains unchanged, which is a bit disappointing. You'd hoped the filters would at least show up on the live view. She holds up the magnifying glass she had in her other hand and smiles. You snap the shutter button and your phone makes a "snap" sound.

"Huh," you say, disappointed, as the picture you took is just a normal picture.

The girl cocks her head slightly. "What? Is it a bad picture? We can take another, I worked really hard on this outfit, it's actually pretty obscure and I was rather hoping it would get me more pictures."

"Velma is obscure?" you ask, raising your eyebrows incredulously. Then your eyebrows shoot up as you see that her skirt is sliding up her legs by itself, slowly.

"Well, yeah," she says, oblivious to the skirt now showing her knees. "I mean, can you place it?" It's not just her skirt, her sweater is moving, too. It's pulling in around her stomach and chest, but it's not shrinking as the neckline is actually expanding, giving a view to her upper chest. "I'll give you a hint," she says, grinning, and you notice that her thick spectacles are thinning out, becoming an alluring set of thin glasses that compliment her face well. "It's not the original or any of the remakes." The neckline on her sweater is now revealing her cleavage and your mouth drops open as you can now see that it's not just her clothing that is moving: the curve of the breasts that you can increasingly see is also swelling out and up.

You're speechless as she continues talking, oblivious to the changes, as she has now utterly transformed: Her skirt is scandalously short, her flats have grown some heels, and her sweater is now a thin outfit that is so tight it appears to be squishing her now impressive bust nearly out of the neckline that drops nearly to her nipples and hangs just off her shoulders. If she was wearing a bra before she doesn't seem to be wearing one now!

"Do you give up?" she finally finishes, and laughs, shaking her chest enough to confirm that she is most definitely not wearing a bra. Then licking her lips (and you realize that her makeup seems better put together, too) she waggles her eyebrow suggestively. "Need a hint?" she asks, moving her palms to the bottom of her breasts under the sweater to lift her now-heavy tits, nearly popping her nipples free. You can see the barest hint of her areolae peeking over the neckline. You still can't speak, stunned. "It's from the porn parody!" she reveals, excitedly.

"The... the porn parody?" you ask, finally finding your voice. "I mean... I didn't know there was a porn parody," you lie, though you know there are countless porn versions of the character to be found online. "How's it different?" you find your mouth saying before you can get it under control. The whole situation is beyond inappropriate, but you still don't want to offend anyone.

She drops her tits and they wobble under the sweater as she puts her hands on her hips. "Really?" she asks. "How is the porn parody different? Well, for starters..." She slowly lifts the fabric of the miniskirt she is now wearing, and you are shocked to see her pussy in plain view, with a thick bush of pubic hair on top. Nobody around you seems to be bothered, though you see several people taking a quick glance.

Your brain is now running entirely on autopilot. "The carpet matches the drapes," you find yourself saying. "Wait, I mean, I'm sorry, I didn't mean to---" you try to apologize when she laughs.

"That's not something you usually say to a brunette, but yeah, it does, doesn't it?"

The girl is crazy hot and doesn't seem to be taking any offense at what you say, so your mouth, unhindered in your distress, continues, "Yeah, so are Velma's nipples pink or brown?" Mentally you begin screaming at yourself, but she simply shrugs.

"See for yourself," she says, then grabs her neckline with both hands and pulls it down. Her tits spill over the top: full and firm, they're amazing tits. She answers your next question before your traitorous tongue can even form it: "And, yes, they're all natural. Grew 'em myself. Wanna make sure?"

Screw it, you say to yourself. If there's a hidden camera somewhere recording this for a prank show it'll be worth it, besides, she's already practically naked already by her own choice. You leap up and your hands begin kneading her breasts. They're just as firm as they look, and you feel a thrill as you feel the hard nubs of her nipples rubbing under your palms. She gasps a little at your touch.

"So, how else is the porn parody different?" you ask, going for broke. If it's a joke this will be when it ends, but if it's a dream or somehow real, maybe you can find an empty room nearby or something!

"Well, on the cartoon, Velma never did this to any of the guys, did she?" she asks as she kneels down in front of you and deftly undoes your pants and tugs them down. Your dick pops free in front of everyone and you freeze in terror: the crowds around you can clearly see your dick as she leans forward, enveloping it in her mouth as she begins sucking on you. But while you are getting plenty of glances, nobody seems upset. A few seem to be leering at the sight, so it's not as though you're invisible or anything.

It's all too much, and you push her back from you with a loud shlurp, then catch someone's eye in the crowd. "Hey!" you yell, not sure of what to say. "Is there anything," you search for any word that makes sense, "um, wrong about this?"

The guy who stopped at your yell looks down at Velma as she greedily swallows your shaft once more, her tongue sliding all around the tip of your dick. It feels wonderful. "I don't think so," he says, shrugging. "I mean, it's pretty obvious that she's cosplaying as the Velma from one of the porn parodies, right? It makes sense she'd want to blow you, it's part of the cosplay." He bends down and lifts her skirt, revealing her naked ass. "And at a closer look, man, I wouldn't say there's anything 'wrong' about it. She's pretty much spot on. I mean, those tits are perfect for the outfit, wouldn't you say? And I can see her ass here: she's got no panties on, looks ready for sex." He looks back up at you. "Yeah, it's a very impressive cosplay." He smiles at her. "Good job!" You can feel her grinning around your dick as he walks off.

It's all too much, and suddenly, as the girl swallows your cock deep into her throat with a **** grunt, you feel your orgasm overwhelming you and you're shooting cum down her throat. She squeals a grunt around your dick, and you can feel her swallowing each shot you fire until you're spent. You find yourself collapsing backwards to sit on the bench again, your dick, softening but still erect---wet with her spit and your cum--in full view. Velma leans forward and sucks it mostly dry, smiles, then makes one final gulp and opens her mouth with a satisfied, "Ahh!"

She stands up, but makes no attempt to pull her tits back into her sweater. "So," she says, one hand twirling at her hair demurely, "what do you think of my costume?"

"It's amazing," you say, catching your breath.

She smiles and jumps slightly in glee, her tits bouncing beautifully. "Well," she says, "catch you around! Next time you can return the favor." She reaches the other hand down and places two fingers in her wet pussy. "Jinkies!" she says, using the original character's catchphrase, but in her voice, with her tits exposed, twirling her hair, a hand at her groin, it carries an entirely different feel. She walks off into the crowd, leaving you finally having caught your breath and realizing your pants are still at your feet. The crowd mills by, nobody caring.

You reach over and pick up your phone. There on the screen is the picture of the girl's costume as it had been only a few minutes before: the frumpy sweater hiding a chest that is obviously smaller than it is now, the longer skirt, the thick glasses. Amazed, you pull up your pants, then click "Save" on the picture. The app goes back to the camera view, ready to snap another.

"Holy shit!" you say under your breath. You're still not sure this isn't some elaborate prank, but honestly even if it was you still got a blowjob from a hottie. Besides, you're not even sure how it would have been possible to alter not only her costume in front of your eyes: her body itself seemed to change.

I guess you can see if it happens again? You look at the crowds. You'd been planning on spending the day attending panels and presentations, but you might have an entirely new itinerary taking pictures of cosplay. Or, you realize, maybe both? You wonder what might happen if you take a picture of a presentation speaker in costume? Or a panelist?