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"Polecat", chapter 1

Intercourse, of course, stifles the desires typically for the heat cycle, reducing them back to the level expected of puberty. the heat cycle for foxes, unfortunately for nico, lasts about one week, and occurs every three months.

Age Difference, Camping, Cub, Elderly, Fox, Heat, Male, Musk, Outdoors, Puberty, Sionnach, Teenager, Tros, Vietnam War, War, grandpa, grandson, nico, old, older male, southern, vietnam

Keeping the Bloodline Pure Chapter 4

Even the boys are unsure if it's their efforts taken root or if it's just her heat cycle. all they know is they like just how insatiable their sweet sister has become!

Age Difference, Bareback, Blowjob, Blush, Boobs, Boy, Breast, Breasts, Breeding, Cock, Consensual, Cowgirl, Creampie, Cum, Cumshot, Cunnilingus, Dog, Domination/Submission, Ejaculation, Erection, Erotic, Facesitting, Facial, Felching, Fellatio, Female Ejaculation, Fingering, Forced Sex, Fucking, Girl, Handjob, Hard-On, Heterosexual, Humping, Impregnation, Incest, Internal, Kinky, Knot, Lust, M/M/F, Mild Erotica, Money Shot, Naked, Naughty, Nude, Nudity, Oral, Paw, Pawing, Plump, Precum, Pregnancy, Pregnant, Pussy, Reverse Cowgirl, Riding, Secret Love, Seed, Semi Consensual, Sex, Sexy, Sheath, Story, Straight, Teen, Tied, Tits, Topless, Twincest, Twins, Underage, Vagina, Vaginal, Vulva, Weight Gain, Wet, Yiff, Yiffy, cum inside

Just How Nature Intended

It was a **primal** gaze, peering into her eyes with a certain sense of knowledge and understanding of the need that she felt...one that sympathized with her heat cycle, and at the same time, cursed her for plaguing his mind with it for so long.

Anatomically Correct, Breeding, Canine, Creampie, Cum, Female, Feral, Hardcore, Impregnation, Knot, Knotting, M/F, Male, Outdoors, Penetration, Realistic size difference, Sex, Size Difference, Straight, Transformation, Vaginal, Werewolf, Wolves, cum inside, tf

Anthropia: Beast Folk Biology

Females periodically undergo a heat cycle, which is the only time they can be impregnated, otherwise, they can safely have unprotected sex without risk of conception.

Chimera, biology, explanation

Pidgeot Valley (Why They Left It)

One poor female pidgeot had been held down during the heat cycle, but instead of semen she found her cunt being filled with dog piss.

Abuse, Arcanine, Ass, Bird, Bondage, Cock, Cum, Dildo, Dog, Hyper, Latrine, M/F, M/M, Mucus, Mud, Pidgeot, Pokemon, Pussy, Rape, Scat, Size Difference, Smothering, Watersports, valley, vore

Sating the Beast

During their first heat cycle to sate the beast however he saw fit.

Amasii lion, Bestiality, Bondage, Feline, Feral, First Time, Forced, Forest, Fox, Heat, Impregnation, Keynari, Knot, M/F, Public, Rape, Tie, Underage, Virgin, Vulpine

Teamwork

Kurama was lying next to me and her tails flicked as i realized she was entering her heat cycle early. i sat up and she looked at me with a set of needy eyes, her ears flicking now too.

Anal, Anthro, Anthropomorphic, Arcanine, Bestiality, Creampie, Doggystyle, Feral, Fucking, Gay, Growlithe, Hard-On, Heat, Humping, Interspecies, Knot, Lucario, Lust, M/F, M/M, Ninetales, Orgasm, Orgy, Penis, Pokemon, Pokephilia, Seed, Sex, Sheath, Straight, Tie, Vaginal, Wolf, Zoophilia, emboar, mightyena, zorua

Answering Natures Call

I went into my heat cycle again and i need you to take care of it please!" tsenturi begged as her moist slit quivered in his presence. "tsen... you're not on the pill and i don't have any condoms..."

Cum, Doggystyle, Impregnation, M/F, MILF, Missionary, Oral, Reverse Cowgirl, Vaginal, Wolf

Mummy's Craving

As time passed susan was able to conceive the next time her heat cycle came around. not long after isaac graduated high school but, they decided to change locations. thus avoiding any unwarranted questions and move where nobody knew them.

Blowjob, Breast Play, Breeding, Death (not in Yiff), Dragon, Dragoness, Heat, Incest, M/F, Mother, Oral, Son, Story Request, Teasing, Tit Fuck, Vaginal, prengnacy

Breakhorn Huntress II

Pyxis felt her pleasure continue to climb, driven by her frantic rubbing and quickly accelerated by her heat cycle.

Adolescent, Adult Content, Aroused, Bathroom, Dragon, Dragoness, Erotic, F/solo, Female, Feral, Fingering, Heat, Heterosexual, Infatuation, Inserting, Masturbation, Mild Romance, Orgasm, Pawing, Penetration, Pussy, Quadruped, School, Solo, Straight, Tail, Tail Sex, Teenager, Teenagers, Vagina, Virgin, Vulva, Young, Young Love, Young adult

The Fetish Plant - Chapter 01

This time the reformation was easier and in a mere hour it had recreated it in her perfectly, making sure it started her heat cycle again.

Crossdressing, Gender Shifting, Mind Control, Other/Herm, Plant, Raccoon

Commission: Thalia's Mate

Although anthros were many, many steps from their feral cousins, a few things still held over from the process of evolving, not the least of which was a heat cycle.

Bestiality, Breeding, Canine, Creampie, Dog, Doggystyle, Domination/Submission, Heat, Impregnation, Knotting, Musk, Oral, Rat, Straight, Vaginal