1 - 20 of 50 Bookmarked Items in Assorted Monsterfucking
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Agnoiology by Buffintruder
Fandoms: 光が死んだ夏 | Hikaru ga Shinda Natsu | The Summer Hikaru Died (Manga), 光が死んだ夏 | Hikaru ga Shinda Natsu | The Summer Hikaru Died (Anime)
07 Dec 2025
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Summary
"Do you want to try feeling inside me again?" Hikaru asks, eyes bright.
"Would I learn anything new, doing it again?" Yoshiki asks a little skeptically. He has tried it twice already, and if anything, he understands Hikaru less.
"Probably not," Hikaru says, but he hasn't moved, and his eyes remain fixed on Yoshiki.
Yoshiki knows that it would be colossally stupid. He's messing with things he doesn't understand, and he doesn't really need Kurebayashi's warnings to know it's dangerous for himself and those around him. He worries that with each brush against whatever lies beneath Hikaru's skin, he loses more of his humanity, that someday he'll be corrupted beyond recognition.
And yet, a part of him wants.
…
In which Yoshiki takes a break from research to try touching Hikaru again.
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Pheromonal Flare by Naruse_Ren
Fandoms: 怪獣８号 | Kaiju No. 8 (Manga), 怪獣８号 | Kaiju No. 8 (Anime)
08 Oct 2025
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Summary
Beneath the waves, biology has its own rules, and loyalty comes in currents you can’t resist.
Day 08: Breeding
Series
- Part 6 of Nrhskinktober2k25
- Language:
- English
- Words:
- 2,806
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 23
- Kudos:
- 124
- Bookmarks:
- 8
- Hits:
- 2,252
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I Have Connected the Dots (He Hasn't Connected Shit) by Pageofpens
Fandoms: 怪獣８号 | Kaiju No. 8 (Manga), 怪獣８号 | Kaiju No. 8 (Anime)
15 Aug 2025
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Hoshina has been training tirelessly for a rematch against Kaiju No. 8 since their first encounter. His dreams, however, have taken an unexpected twist; blending his desire for the new recruit, Kafka Hibino, with his frustration over letting No. 8 escape.
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NaruHoshi10 by KasumitanArt
Fandom 怪獣８号 | Kaiju No. 8 (Anime), 怪獣８号 | Kaiju No. 8 (Manga)
21 Nov 2025
- Words:
- 23,024
- Works:
- 4
- Bookmarks:
- 15
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Breathe in My Desire by KasumitanArt
Fandoms: 怪獣８号 | Kaiju No. 8 (Manga), 怪獣８号 | Kaiju No. 8 (Anime)
26 Mar 2025
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Summary
Narumi clenched his grip into Hoshina’s loose pants. “Hah... Is this what you’ve been fantasizing about Vice-Captain?” Narumi moved slowly, tugging the fabric past Hoshina’s thighs with a smirk and adding, “Getting fucked by the best JAKDF combatant?”
“Ya…” Hoshina admitted, easily.
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Or 10 blurts Hoshina’s dirty thoughts about Narumi while they’re sparring and even though one thing leads to another… of course, it isn’t that simple.
Series
- Part 1 of NaruHoshi10
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you say you wanna tear right through me (i welcome you to try) by blueblossomdays for sieling_fan
Fandoms: 怪獣８号 | Kaiju No. 8 (Manga), 怪獣８号 | Kaiju No. 8 (Anime)
15 Feb 2025
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Summary
The Captain lives for the thrill of it—for the late-night calls when he’s in the area, for the look in Hoshina’s eyes when he wants nothing more than to drill Narumi into the sheets and relinquish all control to him. Hoshina knows this. He embraces it, instigates him like he has Narumi on a tight leash, pulling him closer until he has nowhere else to go but to fall into him.
//
Narumi has a request, and Hoshina denies it… for now.
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Summary
The collected art and stories of lonely souls living in the depths of the ocean. Yuri!!! on Ice reimagined with merfolk, magic, and a love that heals the deepest wounds.
Main story focuses on Yuuri, a Sea Witch fleeing from home and himself, and Viktor, a lonely mer prince living within confined castle walls. Their lives are forever changed when they meet by chance at a local market, and make the agreement to meet again...
- Words:
- 214,907
- Works:
- 3
- Bookmarks:
- 61
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Boto-Cor-de-Rosa by FestivalGrey
Fandoms: Original Work, Brazilian Folklore - Fandom, Boto-cor-de-rosa (Folk Tale)
23 Feb 2026
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Summary
In the lands of the Amazon, folklore tells of the pink dolphin, the boto, taking human form to seduce young women. Surely this is an impossibility--as is the tale that some of his paramours end up pregnant...
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Summary
Ten is fascinated by Soshiro's desire for sex.
Soshiro gives him a demonstration.
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Ten’s glowing red eye was fixed on him through the mirror, and Soshiro let Ten watch as he teased himself, cock still mostly hidden by the thin fabric of his boxers but visibly growing to its full thickness. Sometimes Soshiro found it difficult to work up the desire to masturbate like this, but Ten’s avid interest and genuine pleasure made it easy to focus on how good it felt to touch himself.
“Show me,” Ten hissed. He didn't quite make Soshiro push his boxers down to release his cock, but Soshiro was starting to lose track of where his intent ended and Ten’s began.
- Language:
- English
- Words:
- 2,500
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 12
- Kudos:
- 166
- Bookmarks:
- 19
- Hits:
- 1,501
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like animals by narumigen
Fandoms: 怪獣８号 | Kaiju No. 8 (Manga), 怪獣８号 | Kaiju No. 8 (Anime)
10 Nov 2024
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Summary
mina goes into heat, and her two boyfriends help her through it - it’s one of the few times soshiro and gen get along.
(or. tiger!mina goes into heat, fox!hoshina and wolf!narumi help her out.)
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filthy fealty by narumigen
Fandoms: 怪獣８号 | Kaiju No. 8 (Manga), 怪獣８号 | Kaiju No. 8 (Anime)
30 Oct 2024
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Summary
soshiro lives to serve his captain.
even if that means fucking her ever since her sexual desires became more prominent, and pretending like he doesn't want to be something more than fuck buddies.
(but it's fine. it's fine because soshiro can't say no to her and he's hopelessly devoted. and perhaps- he's not the only one who wants something more.)
(or. mina gets possessed by a demon kaiju that encourages her to act on her sexual desires. its no surprise who she wants - except he cant seem to figure it out, thinking they're just coworkers with benefits.)
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monsterfucking 101 by sanjussence, vampiredilfsforsale (LUCIFER_VLOGS)
Fandoms: 怪獣８号 | Kaiju No. 8 (Manga), 怪獣８号 | Kaiju No. 8 (Anime)
19 Oct 2024
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Summary
Hoshina had a thought then. Or rather, he had this thought a while ago and only now decided to voice it out loud. He purposefully waited until Kafka was mid-sip to ask, “Can you have sex as a kaiju?”
Kafka spit water everywhere.
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After surviving a shipwreck and washing up on the shore of a deserted island, the biggest question on Will’s mind is how to survive, and second to that, how to seek rescue and get back to the mainland. There’s another part of her, though, that’s been wondering if she might not be entirely alone.
- Language:
- English
- Words:
- 2,198
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 11
- Kudos:
- 70
- Bookmarks:
- 12
- Hits:
- 2,278
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Summary
He always feels like a specimen when people look at him in his number 8 form. It’s possible that it’s because he really is one, to them. But Kafka has grown used to it, if hanging out in the labs or being a punching bag in the training rooms will help the Defense Force grow stronger, so be it.
This is a little different.
- Language:
- English
- Words:
- 2,281
- Chapters:
- 1/1
- Collections:
- 2
- Comments:
- 14
- Kudos:
- 490
- Bookmarks:
- 70
- Hits:
- 4,090
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Summary
Ellen finds herself the lover of and entire werewolf pack. How she got there; is revealed in flashbacks.
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Event Horizon by dogbane_pomegranate for ennoshitoes (sieling_fan)
Fandoms: 怪獣８号 | Kaiju No. 8 (Manga), 怪獣８号 | Kaiju No. 8 (Anime)
08 Sep 2023
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Archived files depict the Kaiju Integration Operator Program as a public outrage. The idea of integrating Kaiju genes into human officers didn’t cast a positive light on the Defense Force. Any amalgamation of Kaiju in biological studies were restricted to minimal experimentation.
Or so it was at the beginning.
[ VOLUNTEER: SOSHIRO HOSHINA - APPROVED FOR KAIJU NO. 10 ]
- Language:
- English
- Words:
- 5,492
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 8
- Kudos:
- 265
- Bookmarks:
- 47
- Hits:
- 3,345
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Big Expectations by ABO_gamer
Fandoms: 怪獣８号 | Kaiju No. 8 (Manga), 怪獣８号 | Kaiju No. 8 (Anime)
14 Jul 2024
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Soshiro wants to fuck Kafka in his Kaiju form. He does.
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You Belong With Us by dovefeatheredravens, fahrenheit7
Fandoms: 怪獣８号 | Kaiju No. 8 (Manga)
13 Aug 2024
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“You’re turning out to be more fun than expected, Narumi Gen.” No. 10 hums as it begins to power down. An oddly satisfied sound for a monster. “Hoshina agrees.”
Narumi looks over his shoulder to meet the glowing red eye. Before it fades to black, it ushers one last taunt.
“We’ll dominate you soon enough, though.”
// or, maybe a little monsterfucking will fix them
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Monster Fucking March Day 3: "Bizarre Biology"
Something weird is going on with Vash. Wolfwood is determined to get to the bottom of it.
Series
- Part 3 of Monster Fucking March one-shots
- Language:
- English
- Words:
- 6,544
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 10
- Kudos:
- 489
- Bookmarks:
- 77
- Hits:
- 5,912
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touch me like i'm an ordinary man by avoidingavoidance
Fandoms: Trigun Stampede (Anime 2023)
07 Jan 2024
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Summary
In which Vash cuts Wolfwood off, and Wolfwood tries to cope.
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