Science Fiction Writing Prompts

Super breeding was a surprisingly useful power...

We are not peaceful because we are bad at war. We are peaceful because we are very, very good at it.

It's the first time someone has ever spoken to a pod of whales conversationally. A group of scientists diving together, on coms, and one holding a tablet, menu ready with buttons—each with a human definition. The "Amplifier" light is glowing green, and a pod of whales is gathered.

You’re a terminal archaeologist. You explore worlds that had sudden extinction level events with the intent of preventing such calamities on Earth and colonial worlds. Today you discover where the end took a week for an intelligent species.

A distant descendant of yours comes back in time to interview you for a school project. This actually manages to be less surprising than their differences from a modern-day human.

After accidentally body-swapping with someone, the two of you begin to feel strange. Turns out there are consequences for when you're in someone else's body for too long.

The alien invasion has come, we lost. Now humanity fills the brothels and fuck doll shops of the Galaxy. We still have our disagreements but we can all agree that this is the greatest thing that could have ever happened to us.

In biopunk future people grow their sex toys in their gardens.

Automation has replaced every job save for Onlyfans. Now, sex has become the currency of the land

Parents rent a robot maid for their vacation, and they set it to "adult" mode just to keep their college daughters from throwing parties. Unfortunately, that means the robot is going to take over some very personal "maintenance" for the two sisters, whether they like it or not...

A strange new phenomenon has affected automobiles worldwide. Whenever a car plays Eurobeat, the laws of physics no longer apply. Authorities and scientists are confounded by this. In order to catch criminals, authorities must harness their own Eurobeat soundtracks.

"Human friend, you said that your sky is blue. But it has turned green! Oh dear. Are you ill?"

You accidentally get sent 150 years into the future and everyone is speaking Brainrot. You're the only one speaking normal English but they're treating you as though you've been speaking Archaic

They tear your disguise. "A human! A type 2 human!" Your alien captors say excitedly. You know what comes next. Your sexual fluids are a panacea to their species worth more than gold. Local law permits about 2 hours of milking you for it. catch and release.

Being a near lifelike humanoid female android had its perks! Super computing brain, shaping your body however you like, etc. but it was quite embarrassing everytime you had to use a public recharge receptacle. They were just so…phallic shaped. And your charging ports were….in private areas.

While an astronaut is out on a spacewalk to investigate an asteroid mineral deposit, something starts moving around in her spacesuit, and its horny.

A university or prison with Starship Troopers style mandatory coed showers.

The chance of being rescued by aliens before your ship's air ran out? Unlikely. The chance of them being sexually compatible with you? More unlikely. The chance that it is actually a college-space bus full of newly-single sorority aliens looking for revenge fucks? No way!

She loaded a bunch of books into a self-hypnosis self-improvement app. She didn't know it was also going to find the directories that had all of her porn in them too though!

Aliens have come to Earth. Their intentions are selfish, and (optionally) less than great for humanity, but not inherently hostile. (eg. no To Serve Man, in either direction)

In the future, a person is capable of transferring their consciousness to a new body of their choosing in a process that kills the original body. However, not only have you survived the procedure, your consciousness was cloned.

You are transported to a fantasy world. Thirty years later, your best friends from your old world are transported there as well.

An unfamiliar man, mortally wounded in medieval armor stumbles up to you, grabbing you by the shirt collar, all but pleading "I *must* complete the circle, but it is up to you to break it!", handing you- strangely- a lottery ticket. Then dies. Tomorrow, you learn that ticket won $1.9 billion...

She couldn't remember the birth of her child, only foggy moments from the pregnancy. No one but her thinks this is odd. Maybe her husband wasn't joking when he said he wasn't human.

Two rival mech pilots are clearly attracted to each other, but are too angsty and stubborn to admit it. Their mech suits both decide to get them to start dating.

When she accidentally got her friend's sex droid damaged in a shootout, a sexy cyberpunk girl agreed to let her friend run the sexbot's software in her body during evenings while the repairs are being done...

A half alien girl with tentacles finds herself surprisingly popular with the other girls at their space academy...

Humanity always assumed that the invasion of an all-consuming swarm ended with the humans being devoured. As you peel away the colony walls it becomes apparent they had 'other' uses for us.

First contact with the aliens was getting more and more dire. Despite the diplomat's best efforts the aliens seemed to get more troubled as time went on. Finally, the extraterrestrial punched into the translator "Why have we not mated yet?!"

During a science project, The shy, mousy, nerd girl and the captain of the football team gets hit with a experimental aphrodisiac that could help the dwindling moose population in the area.