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Nil's breeding

The protogen closes his eyes and prepares himslef to be filled even more bigpip lets out another moan as his huge balls are emptied. dumping all his remaining cum inside the protogen pussy. the protogen's belly his now bigger than him.

Anthro, Birth, Cum Inflation, Feral, Impregnation, MLP, Pony, Protogen, Rapid pregnancy

Bugging a Protogen

A quick rp turned into a story with my friend bugma~ co-written with bugma: https://bugma.sofurry.com/ thumbnail art: @duskiarts it was a rather lazy afternoon for the protogen known as polly.

Cum, Cum Inflation, Pokemon, Protogen, Size Difference, scolipede

Binary Null

Her gaze swept up the protogen's scuffed metallic thighs.

Abuse, Anal, Bondage, Canine, Captive, Captivity, Choking, Depression, Dubcon, Dubious consent, Grief, Knotting, M/M, Male, Male/Male, Misgendering, Non-Consensual, Oral, Protogen, Rape, Reptile, Semi-NC, Semi-consensual, Slave, Slavery, Snake, Violence, Whipping, cybernetic, degredation, noncon, suicidal

A Howling Good Birthday

While he put a stack of cookies on a tray he heard someone clear their throat and turned to see a green furred protogen looking at him with a smile displayed in blue led's on his face. "greetings serathin," the protogen said.

Anal, Cock Transformation, Gay, Goo, Latex, M/H, M/M, Muscle Growth, Oral, Rubber, Snakecock, Tentacles, Transformation, Vulcanthrope, merging, parasites, toy

Upgrades

"and these protogens look so expensive!" the bat added with a huge grin. "but if you can't afford a protogen, we are holding a contest!

Anthro, Female, Herm, Horse, Male, Mind Control, Moogle, MtF, NSFW, Protogen, Story, Transformation

Upgraded perspective (Feat: PollyMaker)

"you too, polly, you're the best protogen ever!" "and you're the best buizel ever!" the buizel blushes slightly as he hides his face behind his eevee plush as best he can, embarrassed by being called cute by his loving protogen.

Bed, Bedroom, Cuddling, Eevee, Female, Hugs, Love, Male, OC, Plush, Plushie, Pokemon, Protogen, Relationship, Sister, Skunk, Spank, Tease, Trans female, Transformation, buizel, cuddles, tf, upgrade, wholesome

Zen And The Great Ones Vault

A hole right through where its heart would be if it was a fur and not a protogen. which from his limited knowledge on the reverse engineering market would be where most of the primary machine code would be stored.

Anthro, Coyote, Fox, Post-Apocalyptic, Protogen, Sci-Fi

Making New Friends

"i know buijay and i really appreciate it, you're an amazing friend as well as an amazing protogen. but don't worry i'm definitely much better now." "that's good, i'm always here if you wanna vent and cry to me." "thanks buijay but...

Bedroom, Cuddle, Female, Hug, Kiss, Male, Pokemon, Protogen, Relationship, SFW, Sergal, Spooning, Synth, apartment, buizel, friends, pizza, vent, wholesome

Fillet-O-Fish

A sinister smile found its way across the protogen's visor. the protogen carried the king into their bedroom, setting the vaporeon down on the bed.

Anal, BDSM, Female, Intersex/Male, Male, Pokemon, Protogen, Vaporeon, intersex

The Salvager

Only certain parts of the protogens _looked_ like metal. _mechanical legs won’t be that bad.

brainwashing, breast growth, hypnosis, male, masturbation, mind control, modular genitalia, protogen, raccoon, robot transformation, solo, synth, trans female, transformation, transgender

The intruder

They have gone from fox to cat to catfox and now i've turned them into a protogen. he has always been my more tech based character so seemed fitting to turn him into a protogen since i've been wanting to redesign and use him again.

Avali, Digestion, Male, Protogen, Size Difference, Vore (soft)

[NSFW] Robin the protogen

Aydan tried to grab the protogene but it was as if he wasn't doing anything, the creature was powerful. but the protogen didn't seem to be after my life, it seemed to be after my sex.

Anal, Blowjob, Cum, Forced, Kissing, Orgasm, Otter, Penetration, Protogen, Rimming, Tiger