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."