Eve was a cryptobotanist who specialized in 'intelligent' flora--though that was just the cute name for the public. 'Intelligence' really wasn't what was being measured. It was really more a study of reflexes, pheromones, and instincts. It turned out, in some of these alien biomes, plants could move. Kind of like advanced venus fly traps.
The plant she was studying now was colloquially known as the 'rapist rose' because that was a flashy headline that got people to click on articles about botany. The rapist rose had a complex reproductive system that involved using mammals to spread its seeds. The mature plant mimicked male mating hormones in order to lure females. Once the mammal was in range, the rapist rose's reflexes were triggered, and it deposited a thick, seed-heavy secretion into the captured mammal. Often, struggling mammals would trigger the reflex multiple times while trying to escape.
Ultimately, the rapist rose was harmless. While they could grow big enough to capture a human, the secretions weren't harmful. A human would pass any ingested seeds in their scat, thus spreading the rapist rose's range.
Eve had hit the jackpot yesterday. She'd discovered a specimen in the field that was much larger than any previous documented find. The air around it was heady with the smell of cock. Eve put on her mask to block the pheromones, but she'd already been in range for long enough that they'd had their effect. It was exciting to be a part of the science, to actually feel the research acting on her own body as she became incredibly horny. Her pussy was drenched as she attempted to measure the plant without triggering any of its reflexes.
Pat, a cryptoenterologist on the fieldwork team, approached in a mask. She whistled under her breath.
"Lucky you," she said, as Eve entered various measurements into her tablet. "I haven't even found an abandoned hive."
Pat's interest was in some sort of wasp-like pollinator. Apparently they were incredibly rare. Their ecological niche was extremely specific--they had evolved in tandem with a particular plant that had gone extinct and was only known through fossils.
Eve was more focused on the plant in front of her than Pat's monologue about wasps. Eve was practically drooling, she was so horny. The rapist rose's stamen had evolved to look like a cock, if a slightly alien one. Because this specimen was so large, the stamen was perhaps nine inches long. Below it was a translucent reservoir of what Even's brain was calling 'come,' even though it was actually more correctly a type of fruit. The plant had been pollinated; the seed just needed to be spread.
Eve's eyes lingered on the stamen; the seed-heavy liquid was leaking from the tip. Long tendrils fanned out from the stem; these were covered in fine cilia, which twitched at every disturbance of the air around the plant. Eve knew that if she got in range, those tendrils would snap up like a mousetrap.
Eve's pussy was leaking down her thighs, her underwear already completely soaked. She'd have to be more proactive with her mask tomorrow, or she was likely to get dosed again.
Back at camp that night, Eve waited impatiently for the pheromones to clear from her system. She tried showering, blowing her nose, a netty pot--but nothing worked. Peeved, she recorded this information for the sake of science, then went back to her tent to masturbate.
Eve got under her blanket and shoved her hand in her pants. Her clit jumped up responsively. Eve wanted to get off quickly so she could finally get the horniness out of her system, but she quickly found that wasn't going to be the case.
She gave herself an orgasm with her clit, but she was even hornier than before. She plunged her fingers into her pussy, moaning loudly as her cunt clamped around them. Eve realized, too late, that the airborne pheromones that she had breathed in had settled on her skin as well, and clearly showering had not removed them. Now she was spreading the pheromone, applying it internally to heightened effect.
"Fuck," Eve sighed, entering herself with three fingers.
She had fallen into a daze when Pat opened the flap to their tent.
"Oh, wow," Pat said. Eve distantly realized that she was behaving inappropriately; she was fully naked, with no idea when that had happened. She jerked her hips up and down on her fingers. She didn't know how many times she'd come.
"Fucking plant," Eve moaned. "It dosed me."
"Here, sweetheart. Save your wrist."
Pat went to her duffel bag and came back with a silicone dildo. Eve eagerly snatched it from her, then fed it into her pussy. She bucked on her cot, fucking herself to another orgasm, her soaked cunt squelching around the sex toy. Pat sat on her own cot and watched for a minute, then got herself a cigarette.
Eve just kept going. She grunted and moaned, slamming the dildo up against her uterus, giving herself two more orgasms before her legs gave out completely. Eve whined frustratedly, her convulsing cunt sucking around the dildo, eager for more.
"It vibrates," Pat said. "There's a button."
Eve found the button. She immediately came again, her whole body jerking in place. Eve panted and keened, the orgasm never ending.
"There we go," said Pat. "That's it, baby, you got it."
The next morning, Eve woke up completely naked, the dildo, no longer vibrating, still inside her. She groaned as she drew it out of herself. She had fucked herself to sleep, and that seemed to have done the trick. Overnight, the leftover pheromones had worked through her system.
On the cot beside her, Pat was still asleep, hand in the waistband of her panties.
It was early, so Eve took a long, hot shower before getting to work. She put on her mask before she even left camp, not willing to go through the ordeal of being dosed in pheromones again. Soon, Eve was back in the field with the rapist rose.
"Alright," Eve breathed. "Where to begin..."
She had just crept up to the base of the plant with a jar for a soil sample when a warm mist fell across her skin. She looked around for the source, but she didn't have to wonder for long. The fresh spray of pheromones, taken at close range, got to work right away. She absorbed the full dose through her skin in minutes. Eve cursed, ripping her mask off her face. The air was absolutely humid with the smell of cock, and Eve's clit was swelling up, her cunt starting to drip.
Eve took off her pants--fine, if the flower wanted to fuck her so bad, she'd fuck the flower--but only got them down to her ankles before she triggered the cilia on one of the tendrils. Tendrils wrapped around her legs, arms, and chest, lifting her up into the air. They tipped her into the delicate flower, and Eve's mouth, open in a gasp, was lowered onto the thick stamen.
The plant was capable of incredible precision due to the cilia that sensed the tiniest displacement of air. The plant 'knew' exactly where her orifices were. Eve moaned as the fleshy stamen invaded her mouth. It tasted overly sweet, almost rotten, to the point that the smell and taste stung her eyes. The stamen was so large it prodded the back of Eve's throat, making her gag. But when she struggled, the tendrils were triggered into repeating their grab-and-pull reflex. Eve choked on the cock-like stamen as the tendrils pulled her down on it repeatedly. Eve breathed through her nose, dosing herself with more pheromones. Her wet pussy was on full display to the alien jungle, jiggling in the air as the stamen fucked her mouth.
The cycle, once started, couldn't be broken out of--Eve's own reflexes as a female mammal were to buck and rock as she was fucked, and the plant's cilia triggered at her every movement. Eve moaned around the leaking stamen. The plant wouldn't 'come' like a mammal did. Instead, the vacuum formed by her mouth slowly sucked the reproductive fluid from the reservoir. Eve would be here for a long time before that reservoir was empty. There were gallons and gallons of it.
Eve heard a buzzing somewhere nearby. It was getting to be late morning, when the pollinators would start becoming active. Eve moaned quietly on the stamen, sucking down its seed. Her jaw was sore, and she still had so much more to drink before the reservoir was empty.
The buzzing grew louder. This biome had large insect life. The abundant megaflora had enough nectar to support flies the size of your hand. You got used to it, for the most part. Still, Eve jerked in surprise when something landed on her back. It was as heavy as a cat.
When Eve jerked, the grab-and-pull reflex was triggered again, and Eve was once again being fucked in the throat. She moaned despite herself, tits and pussy lips jiggling in the air. Whatever insect had landed on her back took off, only to land again on Eve's bucking body. Eve shivered, hair raising as six legs and two antenae explored her naked back. The insect walked in circles, buzzed as it took off again, then landed again in a slightly different position.