You met up with your friend Ishii after she sent pictures of her cloaca and a series of explicit text messages. You take the train downtown to her megabuilding. She lives in Nagatown, of course, like the rest of her kind.
A few decades ago, a confederacy of alien species occupied Earth. Humanity eventually pushed back and regained their independence, and is now learning to co-exist with a generation of Earth-born aliens in a post-occupation world.
Ishii is of one such species, the Nagawa, a serpentine folk whose venomous and constricting nature were used to deadly effect in the initial invasion. That was before her time, though.
They tend to nest in urban centers with lots of heat lamps, so Nagatown feels like summer year round. The vipers watch you with narrow slits as you mosey through their territory on your way to get laid.
"Hey snake charmer," Ishii hisses as she lets you in. Her tail swings the door shut and locks it behind you as her hands loop around your waist. Her heat-sensing hood folds outward and her tongue flicks against your cheeks. "Thanks for coming by."
I hugged her and began to stroke her scaly skin. "I'm glad you invited me. But I have one possibly stupid question."
"Oh?" she says, tilting her head to the side. Her eyelids lower to reveal a hint of yellow iris as she looks at you expectantly.
"Ever since I was a kid, I've wanted to know if your race can hypnotize with a glance."
Ishii snorts and her hood flutters back down. "That's just a myth," she says dismissively. "We don't have that sort of power, at least not the way you mean. We can only control things by squeezing them to death." She leans in close, breath hot on your ear. "You can't resist me for long, you know."
She takes you into her nest, a warm and cozy place with many heating lamps set up around the room.
"I don't want to resist." I started stroking her hood.
Ishii lets out a soft hiss as you touch her and relaxes into your caress. "Good," she says, "because I need you for something very important..." She motions for you to follow her over to her large mound of warm blankets in the corner of the room.
"You know I'm entering my mating cycle soon," she whispers as you crawl onto the pile with her. "I want you to fertilize my eggs." Her tail coils around your waist, drawing you even closer.
"It turns out that I will have to fuck your cloaca?"
Her hood rises up and she hisses sharply at the crude turn of phrase. "Yes! My cloaca!" she says, sounding a bit offended. Then her eyes narrow with lust as she continues, "I've been thinking about this for months... I want you to fuck my cloaca hard and deep." She squirms against you eagerly.
"But first," she whispers, "I need to get nice and wet..."
"Will I get anything in return for this?"
"Well," Ishii says slowly, eyeing you up and down with a calculating glint, "if you're willing to help me out like this... maybe we could spend the rest of our lives together? Or at least be close friends." She licks her lips suggestively. "And in return, I could show you things that no other human has ever seen..."
Her tail begins to writhe against your crotch, and she grinds against you, trying to get aroused.
My penis grows from such caresses and begins to bulge through my pants.
Ishii hisses in pleasure as she feels your erection pressing against her tail. "Mmm," she moans, wrapping herself more tightly around you, "that's it... I need your seed." Her hood rises up and her nostrils flare as she takes a deep breath, scenting your arousal.
Her cloaca gapes open, inviting entry. It's moist and warm to the touch, and musky with her desire. "Come on,"
I take off my pants and stick my dick into her cloaca.
Ishii hisses sharply as you enter her, filling her up with your length. She wraps her tail more tightly around your waist, anchoring you inside of her. Her body trembles with pleasure as she feels your cock stretching and flexing within her.
Her cloaca begins to spasm and squeeze rhythmically against you, milking your shaft as she comes, her venom mixing with your seed to make it even more potent.