Boring plot stuff, skip ahead for the juicy bits if you want.
Batgirl crept slowly into the warehouse, her hand hanging close to her belt, ready to grab whatever tool was necessary in case of trouble. Despite being on the waterfront, the warehouse was completely overgrown by a large variety of plants and trees - all of which were species that were not even remotely common around Gotham.
Since Poison Ivy had broken out of Arkham, there had been no word of her for the past four months; then, in broad daylight, a single tree had sprang up in the middle of a busy city street - a clear indicator that Ivy was ready to be found. Batman had left to aid the Justice League in the far reaches of space, however, leaving Batgirl in charge of Gotham’s protection. With a little help from the Batcomputer and Wayne Industries’ extensive satellite network, Batgirl was able to use geothermal imaging to find a long trail of roots that extended between Ivy’s little ‘calling card’, and a warehouse on the very edge of the Gotham waterfront.
Now all Batgirl had to worry about was what Ivy may have been planning, how to stop her and bring her in.
A rustling behind Batgirl made her glance back; the entrance was being blocked by a large number of vines that were sprouting out of the ground, weaving and tangling to become an impassable barrier.
“Welcome…”
Batgirl quickly drew a batarang. “You gonna play nice, Ivy?” She called out. “Or am I gonna have to do some weeding in here?”
“Now, now, Batgirl, there’s no need for such violence…” Ivy’s voice rang throughout the warehouse. “I, for one, would love for us to be civil here…”
“Then show yourself,” Batgirl ordered.
“It’ll be my pleasure…” Ivy stepped out of the darkness. “And soon… yours as well.”
Batgirl heard a rustling noise behind and above her; she spun around and flung her batarang at a pair of vines that were descending from the ceiling, reaching towards her. The batarang sliced cleanly through them; Batgirl reached for another in her belt when she realized she had turned her back on Ivy.
Batgirl suddenly felt three needles shoot into her back, piercing her suit and reaching her skin. With a pained gasp Batgirl went rigid, her arms and legs becoming stiff and immobile. Crap… Four more vines descended from the ceiling and reached towards Batgirl, wrapping around her wrists and ankles and lifting her off the ground, leaving her dangling and helpless.
“I’m honestly surprised…” Ivy said, sounding almost truly disappointed. “I overestimated how difficult it would be to restrain you.” Batgirl heard Ivy approach from behind, and felt her belt being removed from around her waist. Ivy moved to in front of Batgirl, twirling a dart gun in her fingers.
Batgirl flailed in the vines’ grip. “Alright… Four months of quiet, then you suddenly want to be found…” She growled. “What are you planning?”
Ivy giggled and ran a finger along Batgirl’s boot. “See, when your beloved Batman threw me in Arkham yet again, I began to rethink my approach; man is most certainly the greatest enemy to Mother Nature, yes, but all my plans to see my babies forever safe from his oppressive boot, thus far, have failed. So, I thought… why not destroy my enemies… by making them no longer my enemies?”
Batgirl could only give a bewildered look, so Ivy continued. “I realized, if I could create a better bridge between man and nature, this long feud of ours would, at last, come to an end. I, for a time, believed myself to be this bridge, but I’m simply a voice for my children… I am Mother Nature. As such, I must create something that bears the… ‘best of both worlds.’”
“And what would that be?” Batgirl asked.
Ivy smiled seductively. “A child, little Bat.”
Batgirl blinked. “Excuse me?”
Ivy gave her a condescending pat on the cheek. “A child! With some small preparation, we can create the ultimate union of flesh and fauna! And then, my babies will finally be free to grow and live wherever they please, in perfect harmony with those I once fought against!”
Batgirl pulled away as far as her bindings would allow. “I guess it was too much to hope you’d simply become sane after these four months. There’s no way I’m gonna help you.”
Ivy raised an eyebrow. “...I’m sorry if I ever implied you had a choice in the matter, little Bat.”
Batgirl scowled as Ivy reached down and, with deliberate force, plucked the three needles out of her back. Ivy then walked a few meters from her captive and reached into the bushes, pulling out a satchel and rummaging through it. “So!” Ivy said, producing a vial of a clear fluid. “I won't bore you with the details; our first step is to produce a great amount of any form of fluid your body can produce.”
Ivy approached the dangling Batgirl, ignoring the steely glare, and leaned casually against her victim. “Wouldn’t you like to guess what ‘fluid’ I’m referring to?” When Batgirl had nothing to add beyond a furious growl, Ivy continued. “Well, I avoided urine because… well, let’s be frank: neither of us wants to spend our night handling the other’s piss. Saliva may have worked better, but it doesn’t produce fast enough for me to get the quantities I needed. Blood was an option, but by the time I’d harvested the necessary amount from you, you’d be dead. Ejaculate came close, but seeing as this ingredient is the first step, I figured we’d save that for later…” Ivy winked suggestively.
“Then I realized…” She suddenly reached over and cupped one of Batgirl’s breasts, evoking a gasp of surprise. “Milk! It’s perfect! All newborns feed off the teat of their mother, so your milk will be among the first steps towards humanity’s new life!” Ivy uncorked the vial, swirling the fluid inside around meaningfully. “That’s where this comes in… It will simply ‘persuade’ your body to… ramp up production, as it were.”
Batgirl’s eyes widened in realization. “You’re crazy if you think--” she began, turning her head away to avoid drinking from the vial.
Ivy gave a chuckle, then reached for the bat symbol on Batgirl’s uniform and violently ripped it away. Batgirl’s bare breasts were suddenly fully visible, making her yelp in surprise. “It’s not something you drink, little bat…” Ivy cooed as she angled a breast so the nipple was facing skyward, then carefully poured a small amount of the fluid on it.
Batgirl felt her breast go numb, then the other as Ivy poured the remainder of the fluid on it. “Now…” Ivy said, gesturing towards a nearby bulbous plant. Sensing its moment was at hand, a pair of vines, each ending in a pink flower, flew upwards towards the vulnerable Batgirl.
The plants wrapped their fronds around Batgirl’s breasts tightly; she began to feel a quickly rising pressure as they began sucking, yet still not hard enough to hurt. She bit her lip and grunted, weakly flailing in an attempt to dislodge herself.
Ivy smiled and rubbed Batgirl’s stomach. “I’m afraid you’re in for the long haul, darling…” She said as her hand trailed down Batgirl’s abdomen and between her legs; she began rubbing her slit through the suit. “A bit of stimulation should speed things up…”
Batgirl gasped softly, her legs twitching and twisting in their binds. “No…”
Her eyes sprang open when she felt a swelling sensation in her breasts. Batgirl looked down in shock as her breasts began to grow. Within seconds they were each the size of her head. “No!”
“Oh, don’t worry, hon…” Ivy said softly, removing her hand from between Batgirl’s thighs and giving a gentle squeeze to her right breast. “My babies will drain them enough to keep them at a… manageable size.”
As Ivy said this, Batgirl felt something give in her nipples, and something began flowing out of her breasts, into the plants that were milking her. Their suction quickly offset the growth of her breasts as the rapidly produced milk immediately had somewhere to go. Batgirl gave a grunt of aggravation and disgust and flailed again. “No!! Stop it!!”
Ivy frowned, then reached out and stroked one of the vines binding her victim’s legs. The vines adjusted Batgirl’s dangling position so her breasts were dangling towards the floor, and her legs were being held upwards. With the change in gravity, the milk began flowing more freely through Batgirl’s breasts and into the waiting mouths of the plants.
Yet it wasn’t quick enough for the plant, it seemed; for a moment, the plants ceased their suction. Batgirl barely had time to give a confused “Huh?” before they suddenly gave a brief, hard suck.
Then another, this one harder.
Soon, the plants were set on giving brief, powerful suctions every other second, each one evoking a gasp or yelp from Batgirl. The feeling was intense; she balled her hands into fists and grit her teeth as the suction reached the point that her breasts were starting to reduce in size again. The plants became sporadic in their suction, from alternating between the left and right breast, to giving a long, very hard suck that almost seemed like the plant was attempting to pull Batgirl out of the grasp of the vines restraining her.
Ivy approached the plant that the milk was flowing into and gave one of the vines a stroke; a small, open-ended vine quickly rose up, allowing Ivy to take it and hold it near her mouth. A stream of milk—Batgirl’s milk—flowed through the vine, which Ivy drank with a contented moan. “Mmm…” She withdrew the vine and looked to Batgirl. “Would you like a taste?”
Batgirl scowled as Ivy approached, lifting her chin with a finger. Ivy revealed her tongue, still white in Batgirl’s milk, and gave a slow, deliberate lick up Batgirl’s face. Batgirl grunted in disgust and tried to move her head away, but Ivy forced her head back. Ivy smiled cruelly before shoving her drinking vine into Batgirl’s mouth. Batgirl’s cries of protests were muffled as she tried to shake the vine out of her mouth, feeling her own milk flowing down her throat.
Her breasts were quickly returning to normal. Ivy smiled. “I believe I have more than enough, now… You can have the surplus.”
She gave a gentle kick to the milking plant behind her. The plant gave one last, violent suck, evoking a muffled scream of surprise from Batgirl as the last of her milk was quickly drained from her breasts, through the vines, and straight to her mouth. With a violent flail of her head, Batgirl managed to rip the vine from her head, splashing milk all over her face and front. Batgirl took the opportunity to take a deep, coughing gasp of air. The vines detached from her breasts, leaving her nipples red and swollen, and withdrew into the bulbous plant, its center brimming with Batgirl’s milk.
“There! All done!” Ivy said cheerfully, dusting off her hands before reaching down and cupping one of Batgirl’s breasts; her palm pressed against the sensitive nipple, making Batgirl gasp in pain. “You did so good, little bat!”
“You… twisted…” Batgirl panted, her head hanging low from exhaustion.
“Oh, don’t slack off now!” Ivy said, lifting Batgirl’s head up; the vines returned Batgirl to her original position. “We’ve only just begun! Now, the next step…” Ivy said, extending her hand then lowering it; the vines lowered Batgirl closer to the floor, low enough for Ivy to stand comfortably over her. “...Is for you to imbibe in my own, prepared essence…” She reached into her satchel and pulled out a very small plastic bag, holding a glistening yellow powder. “Think of this as the pill you hide in your dog’s treat. And in this case, the ‘treat’ is…”
With her other hand, she began rolling down her panties.
“You have got to be kidding me…” Batgirl groaned.
Ivy smiled, then ripped open the plastic bag with her teeth and poured the powder into her mouth. After a moment, she gave an involuntary shudder as she felt the powder’s effects. “Ah, there we go… Now, Batgirl…” She finished rolling her panties down to her ankles, then kneeled down and straddled Batgirl’s shoulders so that her slit was right in Batgirl’s face. “Begin.”
“Eat me!” Batgirl snapped, trying to force her face away from Ivy’s glistening sex; she quickly regretted her choice of words.
“No, no, Batgirl, it’s you…” Ivy said with a giggle. She reached down and, gently but firmly, pulled Batgirl closer to her groin. “Who should be eating me…”
With one hard pull, Batgirl’s mouth was suddenly pressed against Ivy’s slit. Batgirl mumbled in protest, working to keep her mouth closed. Ivy frowned in irritation, then reached behind her, wrapped her fingers around one of Batgirl’s still-swollen nipples, and gave it a tight squeeze. Batgirl opened her mouth to yelp in pain, allowing Ivy to press her sex further into her mouth.
Batgirl made to pull away, but the taste flooding her mouth was intoxicating. Her mind became dulled to all except the taste of Ivy’s juices dripping into her mouth. Despite her desperate need to pull away, Batgirl was overcome by that taste, and could only think furiously at herself as she began licking mindlessly into Ivy’s folds.
Ivy cooed encouragingly, arching her back and fondling her breasts. “That’s it… Yes…” She grinded herself further into Batgirl’s face, biting her lip.
The licking continued for a minute before Ivy reached down and began flicking her rigid button, making her bite her lip and moan; her bare, green feet twisted frantically in the grass beneath Batgirl. “Yes… Yes… Almost there…”
Batgirl felt a sting of dread, and tried desperately to will herself to pull away, to stop giving in to Ivy’s demented torture. Her head pulled back just slightly, only for Ivy to pull it even further in, wrapping Batgirl’s lips around the entirety of her slit. “Suck…” Ivy commanded. “Suck!!”
To her astonishment, Batgirl complied, sucking on Ivy’s entire crotch the same way she would suck the juices from a freshly-bitten apple. Ivy’s moans were growing louder; Batgirl braced herself.
With a yell of ecstasy, Ivy threw herself forwards, wrapping her arms around Batgirl’s head; her hip twitched with each wave of her orgasm. Batgirl felt the bursts of warmth spilling through Ivy’s slit, into her mouth. She’d barely realized that the intoxicating flavor had vanished before Ivy pressed her head forward again, keeping her mouth in place to ensure her ‘spiced’ essence would be ingested. Batgirl’s mind was in such a haze she didn’t think to avoid letting it down her throat.
Sighing contentedly, Ivy stood up; Batgirl gasped, finally able to breathe through her mouth again.
“Please…” Batgirl whispered, exhausted. “Please… stop this…”
Ivy smiled sweetly; her compassion could have almost been genuine. “I would think we’ve come too far to stop now, darling… We’ve almost finished the prep-work; one final step, and we can begin the implantation.”
She grandly raised a hand towards the ceiling; a vine, this one dotted with purple spots, descended from above and hovered loyally over Ivy’s shoulders. “This will dispense merely a few of the compounds that, together, gave me my glorious new purpose. I feel helping you through the same process will go much smoother if we take a more… gradual approach. So…”
Ivy took the vine tenderly, then raised her other hand; the vines holding Batgirl lifted her up again until she was back in her original position. Ivy frowned at the padded leather still obscuring Batgirl’s nethers, then gave the vines holding her legs a quick tap.
The vines extended, coiling up Batgirl’s legs before climbing up her abdomen, towards the hole where her breasts had been exposed. “What’re you…?” Batgirl began, before gasping as the vines slipped through the hole, into her suit. Her eyes followed the vines as they slithered down her suit and reached the point between her thighs. “No, no…!”
The vines suddenly burst out from Batgirl’s tights, then twisted to widen the holes they’d made. Ivy reached out, wrapped her fingers into the holes as the vines retreated, then ripped away the leather that was obscuring Batgirl’s slit.
Ivy gave a soft laugh. “Do you often go commando while on patrol?” When Batgirl could only respond with a shocked stammer, Ivy put a finger to her lip. “Hmm, actually, panties might chafe in an outfit like this.” She gave a gentle pat to Batgirl’s slit, evoking another yelp from her victim.
“Now, then…” Ivy raised the vine still in her hand, and moved it towards Batgirl’s slit.
“No… No, wait, please--” Batgirl cried before the tip of the vine stroked her entrance; her cry became an involuntary moan of pleasure. Batgirl’s legs squirmed helplessly as she tried to pull herself away from the vine, to no avail. The vine pressed against her slit and twisted in alternating directions, evoking a grunt from Batgirl with each shift.
Ivy reached out with both hands and delicately laid her fingers on both of Batgirl’s flaps; she stroked up and down a few times, feeling the slit grow moist as she did so, then gently pulled the flaps aside. The vine pressed harder against Batgirl’s slit, and entered with a light ‘squit’.
Batgirl gave a loud cry of pleasure as the vine entered her; it only went in a few inches before pulling out, then pushing in again. In, then out, in, then out, each time sinking further into Batgirl, until a good foot of it was embedded in her folds. She could practically feel the vine poking her stomach, feeling a sting of pain in addition to the mind-numbing pleasure in her loins. She kicked her legs desperately, trying to dislodge the vine. “G-get it…” Batgirl breathed. “Get it out…”
Ivy merely smirked, then turned and approached a tree near the plant that contained Batgirl’s breast milk. A branch lowered; hanging from it was a thick, light-green object that looked something like a banana. Ivy gently picked the seed from the branch, then bent over and dipped it in the pod containing Batgirl’s milk.
Before Batgirl could wonder what Ivy was doing, she felt the vine pulse; she felt a foreign wetness surge around the vine as it suddenly expelled some kind of secretion. Batgirl gave a loud gasp, her body tensing in the vines’ grasp, then relaxed, her head slumping to the side; she could feel the fluid settling in her depths, causing a light tingling sensation.
Batgirl suddenly felt the vine rip out of her - smoothly enough not to cause any damage, but still leaving a sharp sting as it whipped out of her folds. Ivy gave the vine a thankful stroke as it retracted to the ceiling, then held out the milk-soaked seed in her hands. “And now…” Ivy said. “The final step.”
Ivy moved the seed towards Batgirl’s slit; when it was but an inch away, the several thin roots sprouted from the end and reached for their target. Their very touch sent a jolt of pleasure throughout Batgirl’s body, making her spasm and moan as they began tunneling their way inside of her. She could feel the roots taking hold while Ivy carefully embedded the seed into Batgirl’s slit like a dildo. When she was certain it was secure, she gingerly removed her hands and smiled.
Within seconds, Batgirl felt a new sensation in her loins - she somehow knew exactly what it was, yet refused to believe it. Batgirl looked down at the seed sticking out of her slit, pulsating slightly; Ivy reached back down and gave it a firm squeeze.
Batgirl felt it, and gave a cry of pleasure. “What did you do…” Batgirl said.
Ivy giggled. “I’ve planted the tool with which my creation shall be conceived. This seed, having been infused with your essence, has now rooted and bound itself to you; it has become a part of you.” She ran her finger along the tip, making Batgirl squirm. “It’s nothing permanent, I assure you… It’ll be gone as soon as we’re finished here.”
Ivy leaned forward and ran her tongue around the seed; Batgirl moaned and struggled in her binds, trying to focus more on freeing herself than the sensations she was getting from her new, alien member. “S-Stop it…”
Ivy giggled - the vibration from her mouth further stimulating the seed and evoking another cry from Batgirl. Ivy leaned forward more and began moving the seed in and out of her mouth, gripping the end of it while sucking and licking. Batgirl balled her hands into fists and flailed harder as her breathing became loud and rushed. She knew what would come; if she could feel what Ivy was doing now, it was no stretch to assume what would happen if she persisted.
After about a minute of what Batgirl would later reluctantly view as bliss, Ivy stopped and, with a wistful smile, snapped her fingers.
The vines suddenly lowered Batgirl to the floor, keeping her bound yet allowing for more movement of her arms and legs. Ivy sat between Batgirl’s legs, her eyes ablaze with lust, then rose up, positioning her slit above the embedded seed. She lowered herself until the tip of it was pressing against her entrance.
“No…” Batgirl said through gritted teeth.
Ivy let herself drop, the seed sheathing into her and evoking a pleasured moan from both women. Ivy lifted Batgirl’s legs and used them to support herself as she began to thrust. “Yes… yes…” Ivy began grunting with a primal lust while Batgirl continued to moan in time with every thrust. Ivy leaned down and began licking and kissing every inch of Batgirl’s exposed skin; she wrapped her lips around a nipple, still swollen from being milked, and sucked on it while she reached up and squeezed the other breast. A small amount of milk remained, as evidenced by the familiar taste that trickled into Ivy’s mouth.
Batgirl’s mind had become hazed; all she knew was the feeling of Ivy thrusting against her, and the knowledge that she was helpless to stop it. The faintest hope she had was to resist, to hold fast and hope that, by some miracle, Ivy would run out of stamina and give up. Yet every moan that escaped her further made her see the folly of that hope.
Ivy, meanwhile, had gone nearly mad with lust; the feeling of Batgirl’s member within her, the taste of the Bat’s skin and milk, the sound of the Bat’s moans… she wanted more. She reached down to the grass beneath them and dug her fingers into it. A pair of vines sprang up, ready to serve their mother’s bidding.
“Tend to us…” Ivy said, donning a vicious smile as she lifted herself and Batgirl up a few inches. The vines slithered beneath them, then parted to extend between the thighs of both women.
Batgirl felt a few teases at her ass before she felt something long plunge into her, making her yell in pain as well as pleasure. Ivy gave a scream of delight as she felt her own penetration. Batgirl felt the vine begin to twist, violently yet not painfully as Ivy continued to thrust; the vine began moving in time with Ivy, pulling out somewhat when she thrusted inwards, then pushing in as she pulled out.
Ivy adjusted herself so she was face-to-face with Batgirl; Batgirl could see the blaze of an uncontrolled lust within Ivy’s eyes. Ivy leaned forward and kissed her, forcing her tongue into her mouth and licking every surface within.
Batgirl was close now; she could feel the seed begin to tremble, like a volcano about to erupt. Ivy felt it as well, as she broke off the kiss and wrapped her arms around Batgirl’s neck. She lifted Batgirl until both of them were vertical, and began thrusting harder and harder. Her lustful grunts became moans to match Batgirl’s as the vines in their asses began convulsing violently, pumping deeper into both women. Ivy pulled herself against Batgirl, pressing the seed into her as far as it could go, as her moaning reached a crescendo.
Batgirl’s limit was met; any resistance she had left quickly melted away, and she came with a scream. She felt the seed burst, sending hot juices into Ivy’s womb. Both women cried out in orgasm, their bodies going rigid for a good thirty seconds, before they both collapsed to the side, panting in exhaustion. The vines gently removed themselves from the women and retracted into the ground; Batgirl’s binds removed themselves as well and retreated to the ceiling, their charge too exhausted to attempt escape.
Batgirl’s feeling of the seed embedded within her began to flicker; her eyes dully moved downwards as she watched the seed suddenly fall out of her. The roots that had bound it to her pulled out of her slit, shriveling and aging as though the plant had been dead for months. The end of the seed that had ‘came’ into Ivy had ruptured and was covered in a thick green slime - the same substance that was leaking out of Ivy’s own slit.
“It is done…” Ivy whispered, running her fingers along her slit and examining the green fluid. Her eyes met Batgirl’s. “You’ve been a most wonderful help, my little Bat…”
“Y-You… you…” Batgirl breathed, unable to think clearly as Ivy rolled her onto her back. Ivy rolled onto her spent victim and kissed her, moaning passionately. Batgirl offered no resistance as Ivy’s kisses moved from her mouth to her cheek, down to the nape of her neck. Once Ivy was finished, she rolled off, reached down and took the spent seed before sitting up, gently caressing her abdomen. Ivy stood up and began to walk towards the thick overgrowth obscuring the exit. “G-Get back here…!” Batgirl called out, trying to sit up. “Come here and…”
Ivy snapped her fingers. A plant burst from the ground in front of Batgirl, blooming into a blood red flower, and sprang up to wrap its fronds around her face. Batgirl clawed at the plant as it sprayed a bitter-tasting fluid into her nose and mouth, a numbing sensation quickly spreading through her face. Batgirl’s eyelids became heavy, her thoughts became even more sluggish, and within seconds she slumped over and passed out.
Ivy hadn’t turned to watch this, yet as she reached the exit she suddenly stopped; she snapped her fingers, this time in agitation as she realized something. “Damn…” She turned towards the prone, unconscious Batgirl and smiled. “I should have asked if she had any ideas for a name.”