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The Hesitant Donor

Thankfully they had no real parental connection beyond the biological, but it still wasn't exactly a comfortable situation. "come now, give it a shot.

Arctic Fox, Balls, Big Balls, College, Deer, Fox, Handjob, Heat, Hesitant, Heterosexual, Hybrid, Impregnation, Island Fox, Knotting, M/F, Otter, Plot Development, Pregnancy, Romance, Sperm bank, Straight, Tits, Vaginal, sperm donation

Introducing Ieesha to Earth

Like dragons of fantasy, she did breathe fire--but she herself explained that there was no magic at all with that; it was a biological process, glands in her throat producing a kind of biological napalm-like spray that she could expel, which then ignited on

Dragoness, Human, M/F

Egg Thoughts

It's just biology." it's biology, but we have science." with a smooth flick of the pan, jarzyl flipped her omelette over. "hey, did you know that arcanecese--i mean, arcanence--no, arca... arcana... that word is a mouthful.

Adolescent, Avaeria, Character Development, City of Wings, Cooking, Cuddle, Cuddling, Dragon, Dragoness, Drake, Eggs, Fledgling, Flirtation, Food, Friendship, Heat, Hug, Hugging, Oridian, Short Story, Slice of Life, Snuggle, Snuggling, Suggestive, Teasing, Teenager, Teenagers, Worldbuilding, Young, chat, conversation, flirting

Program

"now, as i was about to say, my name is mary lansingburgh, and i'll be teaching you for this class, biology forty-one-oh-seven, 'the biology of reproduction'." "go sex ed!"

Angst, Dragon, Exploration, Jaguar, M/F, Non-Consensual, Rape, School, Sex, Straight, Teacher, Teenagers, hurt, queer

My Sister's High Heat.

I'm always bloody horny when i'm high, and now my sister is a biological ticking time bomb. i turn the tv on and try to distract myself as i feel my crotch bulge slightly, making me cross my legs.

Brother, Husky, Incest, M/F, Sister

Uhhhhhh

I couldn't tell you if it was a side-effect of the toxins characteristic to his species' biology or simply my own love of pleasuring him, but by this point i felt little more than a compulsion to fill myself with that taste.

Cock Worship, Cum, Deep Throat, Gay, Kissing, Licking, M/M, Nidoking, Oral, Pokemon, Somnophilia, Unconciousness, Video Games, slit

Phil and James: Getting Wet

Conversely, phil sharing his new-found hobby cemented marine biology as a career choice for fred.

Cub, Fox, Gay, M/M, No-Yiff, Rubber, Snorkeling, Snow Leopard, Underage, wetsuit

Year 4: Roy

The past couple years mixed with this effect, only created a cesspool of biological differences and quickly wore out the human genome.

Adult Content, Alternate Reality, Alternate Society, Anatomically Correct, Anthro, Anthropomorphic, Aroused, Ass, Ass Worship, Athlete, Athletic, Athletics, Avian, Bathroom, Bedroom, Beer, Big Tits, Boobs, Booty, Breast, Breast Fondling, Breast Growth, Breastplay, Busty, Butt, Character Development, Clit Torture, Crossdressing, Curse, Cursed, Cute, Drama, Dread, Drunk, Erotic, F/solo, Fantasy, Fear, Female, Fingering, First Time, Fondling, Forced, Forcedshifting, Gender Shifting, Groping, Gym, Humiliation, Light Nudity, Lust, M/solo, Male, Naked, Nipples, Nude, Nudity, Partial Strip, Pheromones, Pokemon, Pre, Psychological, Pussy, Realistic, Sci-Fi, Science, Seductive, Sexy, Solo, Speciesism, Story Series, Thought Provoking, Transformation, Vagina, Vaginal, Vanilla, Wet, Wrestling, Yiffy

His House, His Rules

But biologically, we have no relation. you see, he's the son of my younger brother who passed away quite some time ago in a car accident, along with his wife. however, i was adopted by our parents, while my brother is their biological child.

Anal, Chastity, Double-Penetration, Horse, Humiliation, Incest, M/M, Oral, Orgasm Denial

Human raptor breeding program-short story

Her cervix was a marvel of biological design, a gatekeeper to her womb that was now opening under the unrelenting pressure of his cock.

Belly riding, Bellyriding, Breeding, Breeding program, Cervical Penetration, Cum Inflation, Feral, Human, Interspecies, Knotting, Non-Anthro, Oral, Raptor, Size Difference, Vaginal, Vaginal Knotting

Permanent Positions - Chapter 4: Bedtime Chats

Say biologically, what does that mean?" "i mean your cellular makeup would be changed to be female," kharon said. "however, as i recall my biology, females are generally born with their egg cells.

Captivity, Slavery, Snow Leopard

Races of Mynethrol I the My'Thana

biology, my'thana, unlike most dragons, do not have the ability to breath out anything, other than stale air.

Dragon, Dragoness, My'Thana, Mynethrol, No-Yiff, Reference Sheet, crystal