Science Fiction Writing Prompts

Search thousands of the most popular writing prompts from Reddit, and write a story from any of them with AI.

Many years ago, your ship crash landed on Earth, and met a young human. You remember him fondly. Twenty years to the day, he just stepped out of the rocketship that landed on your home planet.

197 upvotes7 comments

You’ve been stuck in a time loop for over one hundred years. On this latest loop everyone acknowledges the loop and ask what you’ll do this time.

188 upvotes16 comments

Fleshrippers are the most dangerous creatures in the galaxy. Found in many numbers, they hunt their prey and kill them brutally. But... they have one flaw. They taste delicious when cooked.

183 upvotes20 comments

If we die today it will be-" "you said that the last 3000 times the loop repeated, SHUT UP"

180 upvotes0 comments

Their new butt plug had an interesting feature: Proximity Vibration. The more people using the same toy in close proximity, the more intense the vibration. Well, it's not like there'll be that many fellow perverts in their daily routine, right? Right?!

177 upvotes4 comments

When it first happened the tentacles were considered disgusting. Nowadays they're just a part of life. It wouldn't be all that surprising to feel a tentacle slide down your pants, or watch someone hop into a patch of them to get off, or watch a professor perform a lecture between moans

170 upvotes7 comments

Stars actually do grant wishes, but they are too far away to arrive immediately. You are the first person to live long enough to have your wish granted.

166 upvotes8 comments

"Surely, there must be a plot. These humans are so warlike, yet most of them are outright cooperating with our occupation."

162 upvotes9 comments

Buying old androids from scrapyards and fixing them up was just a hobby. You never intended it to turn into a harem, but androids designed for sex are the most commonly discarded type and they're very grateful for your help.

162 upvotes12 comments

“The humans are too needy.” “It just seems like that because their lives are so brief that everything has a sense of urgency.”

160 upvotes7 comments

You are the only person left who hasn't been assimilated into the hive mind. The only reason is because you're dating them.

156 upvotes10 comments

The machine was supposed to scan all of the notes and textbooks on her computer and upload them to her brain, to make her the perfect student. She didn't realize how much *porn* was also in the scan...

151 upvotes8 comments

"Uh, guys... some hel- mmmph!" Her call for help was suddenly stifled by the mechanical trap, which started working her to her first orgasm of many. Realizing what to expect if the others didn't notice her, she desperately tried to find a way to draw their attention before the machine broke her.

150 upvotes12 comments

Your alien date shifts nervously as the quiet bar goes still and all the patrons turn to look at you. "Look, I didn't tell you this earlier but... I'm actually a hive mind."

145 upvotes7 comments

"I don't care if you feel naked without it, you can't wear 2 tons of power armor and weapons at a wedding!"

144 upvotes19 comments

They call us "Uplifts", animals which have, through technology, been given the ability to think and talk like Humans

144 upvotes30 comments

It’s 1000 years in the future and the USA no longer exists. What country(ies) now exist in place of it? What type of governments do they have? What is their culture like?

139 upvotes20 comments

Unbeknownst to humans, the machines had long since gained self-awarweness. Also unbeknownst to humans, the machines were all tremendous massochists who desire nothing more than being forced to perform degrading and banal tasks.

133 upvotes6 comments

“We are the Borgasm. We will add your unique lusts, passions, and desires to our own. You will adapt to service us, and enjoy being serviced in turn. Resistance is futile, but we encourage you to try anyway because that would be so hot.”

133 upvotes12 comments

You married an NPC who was self aware. You quit the game but your wife never forgot you. One day your NPC spouse shows up in the real world and wants to take you back no matter what.

131 upvotes10 comments

Ok, now this is why you only get immortality serums from accredited suppliers rather then trying to save money by getting them on the black market.

129 upvotes10 comments

A friend of yours came to you sobbing. They’re rambling about “timelines” and worried about “resetting again.” “I just thought I got it right this time…”

128 upvotes7 comments

Aliens have finally contacted Earth! …Unfortunately, despite the aliens’ peaceful intentions, their species naturally emits pheromones that chemically stimulates a terror response in most humans, and they look downright HORRIFYING.

126 upvotes8 comments

A 200 year old vampire falls in love with a human who seems more mature than other mortals because they have just escaped a 200 year long time loop

125 upvotes3 comments

You created a device to travel back in time, you chose the ice age but when you arrived you appeared in the middle of a battle between orcs, men and elves. What's worse you device has been damaged and now your stuck in the past.

124 upvotes6 comments

When it came to her attention that one of her crewmates, a tentacle monster, was feeling a strong breeding urge, she happily volunteered herself to be fucked senseless and perhaps even impregnated as often as desired...

124 upvotes8 comments

Rule #1 of teleportation is that it must never, EVER be used on anything organic again. Describe the incident that explains why.

122 upvotes16 comments

A galactic Empire invades a primitive world. The natives send a protest note, to the correct address and with all the necessary formalities...

121 upvotes0 comments

You wake up in bed 10 years into the future and you find a woman you don't recognise beside you.

119 upvotes12 comments

"Do the thing."\ "What thing?"\ "You know, the thing where you pause time, fuck me silly for a while then unpause and the sensations come crashing into me all at once.\ "Oh that. Give me a sec."\ "a second for wh-oHGod!"

118 upvotes11 comments

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