965 results for hypothesis.

- [Lots of Very Implausible Evolutionary Coincidences](https://fse.anthro.fr/stories/1742863-lots-of-very-implausible-evolutionary-coincidences.md)
  Author: AddytheAuthor
  Tags: Alien, Anthro, Anthropomorphic, Friendship, Human, Interspecies, Romance
- [Echoes of Another World](https://fse.anthro.fr/stories/1205270-echoes-of-another-world.md)
  Author: Jeeves
  Tags: Cat, Cock, Cum, Femdom, Human, Humping, M/F, Orgasm, Outdoors, Pussy, Riding, Rough, Sabretooth Tiger, Vaginal
- [Jerk (Me)](https://fse.anthro.fr/stories/840653-jerk-me.md)
  Author: Jafurlo
  Tags: Cum, Foot Fetish, Gay, Macro, Male, Masturbation, Micro, Paws, Size Difference, Snow Leopard, Tiger
- [The Sexual Taxonomy of the Species commonly known as Xenomorphs](https://fse.anthro.fr/stories/1658944-the-sexual-taxonomy-of-the-species-commonly-known-as-xenomorphs.md)
  Author: TheXenoRaptor
  Tags: All Male Species, Anal, Anal Vore, Balls, Compassion, Consensual, Cuddling, Cum, Dildo, Dildo Tail, Domination/Submission, Gay, Gloves, Harness, Homosexual, Human, Male Pregnancy, Oral, Tail, Tail Dildo, Urine, Various Species, Vibrator, Vore (soft), Watersports, Xenomorph, furs, large balls, large penis, marking, mpreg, slit
- [Beastly Plants](https://fse.anthro.fr/stories/479258-beastly-plants.md)
  Author: MrFox
  Tags: Character Development, Cock Growth, Human, M/M, Muscle Growth, Plant, Transformation, body hair, hair growth, hairy
- [Spirit Bound: Chapter Fifty-Three](https://fse.anthro.fr/stories/348411-spirit-bound-chapter-fifty-three.md)
  Author: plainwalk
  Tags: Akita, Cub, Drama, Gay, Highschool, Magic, Male, Rottweiler, Series, Violence (Not In Yiff), Wolf, barepawed
- [Testing the Metal and Testing Their Mettle](https://fse.anthro.fr/stories/755894-testing-the-metal-and-testing-their-mettle.md)
  Author: StGeorgesHorse
  Tags: Discovery, FAMILY, Human, Plot Development, Story Progression, Werewolf, danger, silver
- [Ursa Major](https://fse.anthro.fr/stories/755343-ursa-major.md)
  Author: Luther-Bat
  Tags: Adult, Adult Content, Anthro, Anthropomorphic, Aroused, Ball Growth, Balls, Bear, Cock, Cock Growth, Contemporary, Fondling, Growth, Hyper, Hyperphallic, Hypertrophia, Lust, M/solo, Male, Mammal, Muscle, Muscle Growth, Muscle Worship, Naked, Nude, Nudity, Penis, Pre, Short Story, Size Queen, Solo, Transformation
- [Sunshine Days - Chapter 17](https://fse.anthro.fr/stories/741564-sunshine-days-chapter-17.md)
  Author: Summerfox
  Tags: Anal, Bible camp, Bull Terrier, Fingering, M/solo, Male, Nudity, Tabby cat, Teenagers
- [Facility 1.S](https://fse.anthro.fr/stories/545085-facility-1-s.md)
  Author: Xialus
  Tags: Badger, Clean, Horse, Lion, No-Yiff, Rabbit, Sci-Fi, Story Series, Wolf
- [Digiherm Evolution](https://fse.anthro.fr/stories/421457-digiherm-evolution.md)
  Author: Iscin
  Tags: Boobs, Breasts, Digimon, Dildos, F/Herm, Feet, Fellatio, Fingering, Foot Fetish, Footjob, Gulimon, Herm/f, Hermaphrodite, Masturbation, Mind Control, Penis, Renamon, Rika, Takato, Transformation, toes
- [The Wonder of Discovery](https://fse.anthro.fr/stories/782789-the-wonder-of-discovery.md)
  Author: Casca
  Tags: Autofellatio, Cum, Cum Inflation, Cumshot, Deep Throat, Detachable Penis, Dildo, Ejaculation, Foreskin, GFYS, Hypertrophia, M/solo, Portals, Self fucking, Spooge, Tanuki, Uncut, modular

Next page: https://fse.anthro.fr/stories?page=5