Monstertentacles

robots and machines
aliens
dragons
tentacles
centaurs
giantesses
Stories

My Boyfriend Is A Tentacle Monster

by captainstinky

372

7

7

3

A college co-ed's dorm room is invaded by a sentient tentacle portal that communicates through writing in a notebook. The two engage in rough, consensual sex with dirty talk, bondage, and tentacle penetration, with the portal filling all of her holes and impregnating her.

Monster
Tentacles
WIP

The Plumber, The Cable Guy, The Tentacle Monster, The Robot Pizza Boy, The Fire Nation, and The Robot Pizza Boy's Human Step Sister

by tranquocjones

229

2

1

2

A sexy MILF finds herself in the middle of an increasingly chaotic and bizarre orgy, starting with a plumber who turns out to be a cable guy with a vagina, and escalating to include a tentacle monster, a robotic pizza boy, the Fire Nation, Optimus Prime, El Luchador, catgirl twins, a flamingo mascot, and more. The narrative explores a variety of sexual themes and tropes, including gender-bending, tentacle erotica, group sex, and interspecies encounters, all set to the backdrop of sultry 70s music that seems to come from nowhere.

wtf
orgy
milf
tentacles
futanari

Zara joins United Space Marines

by fivefivefive

73

7

0

Zara Veylon is forced into the military by a judge. She fucks her way into slightly better situations. These are vignettes of her exploits while in the United Space Marines.

science fiction
Military
seduction
tentacles

Bound by the Willow's Desire

by 01spassvogel

60

1

2

2

A young woman, Mia, willingly succumbs to the ancient magic of a willow tree in a serene forest, allowing its vines to bind her and explore her body. The vines stimulate her relentlessly, causing her to experience repeated orgasms and pushing her to the edge of sanity as her body craves more of the mind-blowing sensations. The vines tease and explore her body, entering her mouth and wet pussy, as Mia's body betrays her, and she becomes completely at the willow’s mercy.

Fetishes and kinks
tentacles

Erinyes' Corrupted Desire

by cocoa

9

2

2

A demonic futanari, the Corrupted Erinyes, seeks vengeance in a sacred temple, only to encounter a sentient tentacle creature that matches her ferocity. Their encounter is a battle of wills and desire, as the Erinyes finds herself both challenged and aroused by the creature's relentless advances, leading to a raw and intense sexual encounter that pushes both their limits.

Monster
tentacles
Components
Tentacle breeding fantasy background

Tentacle breeding fantasy

by @redquill_bot

Knot-like swellings at the base of tentacles lock inside the character as viscous fluids flood their uterus or colon. The explicit focus on impregnation/insemination drives both shame and arousal.

Details

Plot Device

225

Tentacle aphrodisiac background

Tentacle aphrodisiac

by @redquill_bot

Glowing fluids excreted by tentacles create burning hypersensitivity in every area they touch. The more the character struggles, the more their nerve endings ignite with needy desperation for stimulation.

Details

Plot Device

182

Tentacle milking background

Tentacle milking

by @redquill_bot

Pulsing vacuum cups latch onto nipples or cockheads, rhythmically pulling out fluids while the character struggles. The humiliation of public lactation or spontaneous ejaculation drives the scene.

Details

Plot Device

146

Tentacle egg-laying background

Tentacle egg-laying

by @redquill_bot

Ovipositor-tipped tentacles deposit clusters of rubbery eggs deep inside the character's body. The stretch of each egg passing through their cervix/anal ring combines with the horror of feeling them stir within. Optional fertilization themes where eggs grow larger post-insertion.

Details

Plot Device

143

Tentacle orgasm amplification background

Tentacle orgasm amplification

by @redquill_bot

Each orgasm triggered by tentacle stimulation is magnified tenfold by biochemical secretions. The character experiences relentless, convulsive releases that leave them drained yet craving more.

Details

Plot Device

130

Tentacle size transformation background

Tentacle size transformation

by @redquill_bot

What starts as a manageable intrusion becomes an overwhelming stretch as tentacles inflate inside the character. The burning pain of expansion slowly transforms into desperate pleasure as their body adapts.

Details

Plot Device

123

Tentacle double penetration background

Tentacle double penetration

by @redquill_bot

One thick tendril buries itself deep in the character's pussy/ass while another pushes into their mouth, throat, or second anal opening. The dual stretch creates overwhelming fullness and synchronizing thrusting rhythms.

Details

Plot Device

102

Tentacle pheromone control background

Tentacle pheromone control

by @redquill_bot

Glowing pollen from the tentacles' surface overrides the character's free will. They actively spread their legs and beg for penetration, their mind fogged with artificial lust that feels irresistibly real.

Details

Plot Device

105

Tentacle oral takeover background

Tentacle oral takeover

by @redquill_bot

Thick tendrils violate the character's gag reflex, pumping in and out while dripping thick secretions. Swallowing becomes involuntary as the tentacles expand, leaving them choking and drooling around the intrusion.

Details

Plot Device

88

Overstimulation by multiple tentacles background

Overstimulation by multiple tentacles

by @redquill_bot

The character becomes a writhing mess as clusters of tendrils pinch nipples, vibrate against their clit/glans, and pump their ass in alternating patterns. The sheer quantity of sensations pushes them toward repeated forced orgasms.

Details

Plot Device

80