Stakeouts are boring.

It doesn’t matter if you’re a detective with the Gotham City Police Department or a mask wearing vigilante, nothing is quite as boring as sitting in one spot, and doing absolutely nothing for six hours straight. Barbara Gordon, the Batgirl, was intimately familiar with this fact on this particular night. Since dusk, she’d been on the roof across the street and a few blocks down from a construction site. Supposedly, one particularly notorious mob boss, Falcone, was having some kind of deal go down there. The cops, of course, couldn’t raid a private property without a warrant or probable cause, which a rumor hardly qualified for. Read: They’d been paid off like usual. Batman was on standby, ready to move in and take them on - but they’d be watching for him in particular, and over the years Falcone had learned the old man’s tricks.

He hadn’t, however, learned Batgirl’s tricks yet - which was why she was the one doing the stakeout now. It was a chance to prove that she was every bit as competent as Nightwing, and a worthy ally to the big bat himself, and it was not a chance she was planning on passing up.

It was about an hour later when things went down. At first, it was flashes of movement in the dark shadows, but soon as she looked through a set of binoculars, men in suits that were a bit too posh for vandals or construction workers had started to enter. It was time to get ready and go.

Batgirl grappled down to street level, calling Batman over the radio and telling him that they were starting. She crept through a back alley towards the site, checking her gear to make sure it was all in order for the inevitable upcoming fight. She got ready with the grappling hook gun to get over to the target building…

“Evening missy,” a voice said behind her. “I’d ask what you’re doing here, but well, the themed spandex don’t leave much to the imagination now do they?”

She whirled around with a high kick. The large man who had somehow made it behind her managed to catch her leg, but she used it to swing between his legs, causing him to fall over onto his back face up and forcing him to let go. Both combatants recovered quickly, and Batgirl put a bit of distance. “I don’t have time for a two-bit thug. Falcone’s going down tonight.”

“Sure, sure.” the man said, dusting himself off. “I ain’t no two bit thug though. Three, four bits at least. And well, boss said I had ta make sure nobody messed with his deal, ya know?”

“I don’t think you’re being paid enough for this.” Barbara said, preparing to move at a moment’s notice - this guy seemed to think he was tough, but he didn’t look like any of the more… superhuman, members of Gotham’s underworld. They had a tendency to stay on-theme and act a bit more nuts.

“Honestly, given the fact I caught you and not the real bat, I figure I’m bein’ paid too much.” The hired thug said, and reached into his jacket.

Batgirl reacted fast. At this distance, she could charge in against the man before he was able to draw and fire a sidearm - it turns out drawing a gun isn’t an instant win at this distance.

At least, if it had been a gun that would have been the case. The object the man pulled out was not a gun at all, and did something rather different from that. A wave of strange energy blasted from his hand directly into the Batgirl. Luckily for her, it was not the kind of blast that fried people…

Barbara stumbled past the man and onto the ground as her legs suddenly stopped working mid-charge. She groaned, feeling intensely… strange. “So, friend, seeing as I don’t think either of us are going to be needed here…” the man said, “I’ve got a pool party I’m heading to tonight. Got the invite but called it off for work, but well, looks like that ain’t a problem now. You coming with?”

Batgirl wasn’t in much of a state to answer. She tried to gather herself and stand, but instead she just got on her hands and knees, bottom in the air. Try as she might, she couldn’t get up further than that position. She felt strange. It wasn’t as if she didn’t have the strength to move - it was more that her body simply would not respond to her signals anymore. She couldn’t even open her mouth to speak, or look around.

What she could do was feel, and see. Suddenly, there was a massive weight on her chest, dragging her body downwards. Her face fell between a pair of massive… somethings. Which, she realized suddenly, were her boobs. Her breasts were growing rapidly, going from their original modest size to melons, and showing no sign of stopping, the fabric of her suit stretching with it. The thug stooped down into her vision, whistling softly. “Well I’ll be, this does do what the dude said it would. Fun. Well, girly, you’re in luck. Boss just said I had to stop whoever came here from interferin’. I’m thinking you’re gonna be pretty stopped for about a day. Fortunately for you, he didn’t tell me to kill anyone. Implied it, sure, but didn’t say it. So I ain’t gonna kill ya, or even take off the mask. We’re gonna have a bit of fun. Name’s… call me Johnny, yeah? It’s an alias, sure, but ain’t like I can tell ya my real name.”

Batgirl’s arms hands changed next, growing and thickening rapidly. They were forced to clasp her massive melons, and grew and grew, fingers becoming thick stubs as big as her whole hand had been previously, while her palms had become big enough to hold the five stubs. Her arms were just as thick, reaching around and cradling her bust. “Johnny” reached down to her bust, and squeezed hard. If she’d been able to move, he’d have been on the ground after that. But as it was, she couldn’t do a dang thing about it, and his smirk showed that he knew it. But rather than pain, Batgirl felt… pleasure? It felt really nice, like a massage on her bust. It was pretty damn embarrassing, but she filed that away for later. The more confusing thing was the loud squeak that sounded from it. On further examination, such as she could make… her breasts didn’t look like flesh anymore. The way they stretched and distorted was more like plastic, let alone the sound. “Interesting gadget, this,” Johnny said as he stepped back to watch some more, “Transforms the target into a harmless form, is the goal. Friend said it had some weird effects… he sure wasn’t kidding, but I can’t say that I’m complaining.”

The transformation continued rapidly, and Batgirl’s gaze shifted. It was going upwards, like something was tilting her head back. Back and back it went, beyond the point that it would have stopped if her neck was still entirely flesh, and she felt the strange sensation of her head pressing into her shoulders, between them and down. She couldn’t see it, but her face flattened and extended, while the “ears” of her mask stuck up and bent over to become handles. Her pelvis bent backwards further, until it was sitting at an angle. At the same time, her hips and buttocks started to grow, ballooning in size until each was several times the size of her head. Her legs grew as well, becoming thick and lacking feet, while connecting to her bottom. The whole time she could feel that part of her body change to plastic as well. The last change was something appearing in her mouth, although she couldn’t tell what it was from her angle.

Johnny leaned over her, grinning. “Well then, you look nice don’t you? Let’s get going, before we miss the party…” he reached down to her mouth and pulled. There was the loud hiss of escaping air, and Batgirl felt herself… deflate? Her gaze sunk lower and lower, until there was no air left in her hollow plastic body and Johnny picked her up. “Now then, shouldn’t be too far…”

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Batgirl winced a bit as she splashed down into the pool, expecting a shock from the temperature change. But instead, her plastic body felt nothing - of course, she wasn’t human at the moment and wasn’t particularly sensitive to temperature changes. She spun around a bit  in the water, internally fuming. This was humiliating.

Johnny had brought her to a highrise penthouse, where the party was apparently taking place. He’d explained that he’d been ‘let off from work early’ and been able to make it just in time, and how his friend had lent him a batgirl-themed pool toy to float. People will make a sale out of anything right? Then he’d gotten an air hose and started to inflate her. She was near certain he put more air in her than had been there when she’d transformed, since her boobs and bottom seemed a bit bigger.

She heard some splashes as Johnny and the two women he’d greeted slipped into the pool and waded towards her. “Can you help me up?” One of them - Batgirl was pretty sure it was the blonde - said. “Assuming you don’t mind me borrowing her for a bit~”

“Of course, darling,” he said - she could nearly see the smirk. There was a loud splashing, and a lot of laughter, before suddenly Batgirl’s vision was blocked out by flesh. She realized that the woman was sitting on her now, and she felt the weight distort her plastic body and push her a bit deeper into the water. God was this embarrassing - sure, they may not have realized who she was or that she was a real person at all, but they were sitting on her face all the same and using her like some toy! And what’s more - she winced as the woman reclined, letting her head rest between Batgirl’s ballooned buttocks. She didn’t wince because it hurt, but because it very much didn’t. It felt good to be used, in a way that wasn’t unlike the way it felt to get a massage. It wasn’t really a localized thing so much as a feeling of relaxation throughout her hollow body.

The woman giggled. “She’s a pretty good seat… gotta say, I can’t believe that anyone would let something like this toy through. I mean, look at these tits!” As if to emphasize her point, she leaned forward to fall face first into the valley between Batgirl’s boobs. The heroine-turned-pooltoy felt a sudden shock of pleasure as the woman wrapped her arms around Batgirl’s breasts and squeezed. She couldn’t reach all the way around, the bust was rather too big for that, but she did manage to get a good amount of them. Batgirl would have blushed if she could, between the woman’s breasts rubbing on hers, and the shame from feeling pleasure from it. Even if it wasn’t sexual pleasure, she shouldn’t have been enjoying any part of this.

Johnny waded over with a grin. “What are they going to do, call? ‘Hi, this is batgirl, and I’m offended you used my image.’ As if!” He leaned in to give the woman a rough kiss. In doing so, he pressed against Batgirl’s chest as well, distending it further and giving even more enjoyment to the heroine. Only unlike the woman, he was clearly doing it intentionally - though with how good it felt, it was difficult for her to mind.

Batgirl sighed internally. There was nothing more she could do, really - she was stuck as a pool toy for the next day or so no matter what she tried. So since she couldn’t do anything… she may as well just settle in and enjoy it, right? Right on cue, as if sensing her thoughts, Johnny took a deep grope of the pool toy’s massive tits. As the pleasure shocked through her mind, instead of recoiling from it, she basked in it.