Help Settings

I See Alphys, I See Francis (Alphys X Francis)

I was getting good results from my experiments, y'know, like always, so undyne said 'you need stimulation!'

Abuse, Age Difference, Alphys, Anal, Anthro, Balls, Bestiality, Biting, Blowjob, Breast Fondling, Breastfeeding, Burgerpants, Butt, Caprine, Character Development, Couple, Creampie, Crossdressing, Crossover, Cumshot, Dancing, Dinosaur, Endosomatophilia, Erection, Fanfiction, Fat, Father, Feet, Femdom, Fingering, Fish, Foot Fetish, Foot Massage, Footjob, Futanari, Gang-Rape, Goat, Heterosexual, Humiliation, Humor, Incest, Internal, Interspecies, Licking, Lizard, M/F, M/M, Mario, Masturbation, Mettaton, Mind Control, Mouth play, Naked, Narcissism, Naughty, Nudity, Orgasm, Papyrus, Pedophilia, Penetration, Penis, Pregnancy, Public, Punishment, Rabbit, Rape, Reptile, Revenge, Robots, Romance, S&M, Sans, Satire, Scalie, Semi Consensual, Sexy, Shrinking, Singing, Size Difference, Skeleton, Straight, Strap-On, Striptease, Super Paper Mario, Teasing, Teenager, Temptation, Tentacles, Tickling, Tits, Tongue, Toriel, Torture, Transformation, Twincest, Undertail, Undyne, Vagina, Various Species, Video Games, Voyeurism, WORSHIP, brains, coffee, dating, paper mario, rings, shipping, stomach, toes, vore

Ultimate Furry Crossover: An Adult Choose Your Own Adventure - Castlevania

V=fkyi8algq_k)) undyne ([http://undertale.wikia.com/wiki/undyne](http://undertale.wikia.com/wiki/undyne)) ursula ([http://bof.wikia.com/wiki/ursula](http://bof.wikia.com/wiki/ursula)) **villains** _-actively hunting the protagonists_ alopex ([

Choose Your Own Adventure, Crossover, Rule 34

Hallowtide: Chapter One

"that's alphys and undyne for you. how are those two lovebirds doing?" "they're doing fantastic! but they decided to join papyrus's and mettaton's expedition into highlands for hallowe'en. they were really excited about it.

Angst, Comedy, Frisk, Halloween, Mettaton, Muffet, Napstablook, Papyrus, Papyton, Sans, Soriel, Toriel, Undertale

Giantess Toriel X Alphys: Incestual Apocalypse

"realizing how incredibly stupid it was that she had somehow forgotten to mute her ringtone, undyne spoke to alphys in a nervously hushed whisper over the phone.

Abuse, Adult Content, Anthro, BDSM, Bisexual, Blood, Blowjob, Blush, Bondage, Breastfeeding, Breasts, Caprine, Cock And Balls Torture, Comedy, Creampie, Cumshot, Dildo, Domination/Submission, Dominatrix, Ear Fetish, Ejaculation, Elephant, Erection, Family, Fellatio, Femdom, Fingering, Foot Fetish, Foot Worship, Footjob, French Kissing, Gangbang, Glasses, Goat, Gore, Group, Handjob, Hermaphrodite, Horror, Humiliation, Incest, Insanity, Licking, Lizard, M/F, M/M, Macro, Master/Slave, Masturbation, Mature, Micro, Mind Control, Molesting, NSFW, Nudity, Orgasm, Parody, Pedophilia, Plushophilia, Public, Rape, Relationships, Revenge, Romance, Rule 34, Satire, Scalie, Semi Consensual, Sex, Shrinking, Size Difference, Snuggles, Suicide, Teasing, Threesome, Torture, Transformation, Transgender, Unbirthing, Underage, Undertail, Undertale, Violence, Vore (soft), Voyeurism, giantess, moaning, murder, screaming, smut, sucking

Burping Toriel

undyne's going to lohuorp--love this!" toriel held a forepaw to her cheek, admiring her pupil. "i'm glad you are satisfied.

BBW, Fat, Feederism, Toriel, Undertale, belch, burp, gas, ssbbw, stuffing

AFTERTALE Ch. 4

undyne grit her teeth, but held back her objection. mettaton looked away. "so... kids... which of you will be fighting it?" frisk was about to raise her hand when asriel stood up. "i will. frisk already had to do this one time.

Alphys, Asriel, Frisk, Mettaton, Papyrus, Sans, Toriel, Undyne

Giantess Toriel X Asriel: Motherly Fuckery

Alphys vs undyne, this story's fanfic of origin, can already be heard screaming loudly from its grave.

Abuse, Adorable, Age Difference, Alcohol, Alphys, Anal, Anthro, Asgore, Asriel, BDSM, Bestiality, Big Tits, Bisexual, Blood, Blowjob, Blush, Bondage, Brainfucking, Breastfeeding, Breastplay, Bukkake, Canine, Caprine, Cartoony, Cheating, Chocolate, Clit, Comedy, Condom, Creampie, Cuckolding, Cuddling, Cum, Cum Bath, Cumshot, Cunnilingus, Cute, Dark, Deep Throat, Deep Thrust, Depression, Digestion, Doctor, Dog, Doggystyle, Domination/Submission, Ear Fetish, Earwax, Electricity, Endosomatophilia, Erection, Family, Fanfiction, Fear, Feeding, Feet, Femdom, Fighting, Flatulence, Foot Fetish, Foot Massage, Foursome, Fucked up, Fucking, Futanari, Gangbang, Glasses, Goat, Handjob, Hentai, Hermaphrodite, Hospital, Hug, Humiliation, Humor, Incest, Inflation, Insanity, Inserting, Interspecies, Kinky, Kissing, Licking, Lizard, Love, M/F, MILF, Macro, Masochism, Masturbation, Mature, Meme, Menstruation, Micro, Mind Control, Molesting, Monster, Naked, Naughty, Necrophilia, Non-Consensual, Nudity, Orgasm, Orgy, Parody, Penetration, Penis, Philosophy, Pregnancy, Prison, Psychological, Public, Punishment, Pussy, Rape, Relationships, Reptile, Romance, Rule 34, S&M, Sans, Satire, Scalie, Scat, Science Fiction, Seduction, Shrinking, Singing, Size Difference, Sleeping, Smothering, Story Series, Straight, Teasing, Teenager, Temptation, Tentacles, Thought Provoking, Tickling, Tied, Tit Fuck, Tits, Tongue, Toriel, Torture, Toys, Tragedy, Transformation, Trouble, Twerking, Unbirthing, Unconciousness, Underage, Undertail, Undertale, Vagina, Vibrator, Video Games, Violence, Virgin, Vore (soft), Voyeurism, brain, brains, caught, crippled, giantess, gross, heads, injury, sadism, soles, wheelchair

An experiment gone wrong? Part 13

You see undyne is here and a few benches were set up. no doubt undyne carried them down here, "you ready you punks, i'm going to whip you into shape." asriel looked a bit scared and you just smirk, "you think you can keep up?"

Asgore, Asriel, Catboy, Frisk, Goatbro, Goatdad, Goatmom, OC, Papyrus, Sans, Toriel, Undertale, Undyne

Crouching Toriel, Hidden Cougar: Chapter Five

"sans," replied toriel _sotto voce_, "my child has been in the same room as alphys and undyne kissing. after witnessing that i doubt whether they have much innocence left to protect."

Angst, Cuddling, First Time, Frisk, Frottage, Papyrus, Romance, Sans, Soriel, Toriel, Undertale

King's Company I

He continued to think about aero, how the first night they spent on the surface they had a large feast in his home, he, toriel, undyne, and papyrus were cooking up a storm in the kitchen.

Adult, Adult Content, Aroused, Ass, Balls, Bareback, Belly, Bisexual, Blowjob, Chubby, Cock, Cuddle, Cumshot, Dick, Erection, Erotic, Explicit, Fanfiction, Fantasy, Fat, Fatfur, Fatty, Feeding, Fondling, Foreplay, Gay, Handjob, Hard-On, Hotdogging Sex Position, Hybrid, M/M, Male, Masturbation, Orgasm, Orgasm Denial, Penis, Seed, Sex, SoFurry, Spooge, Story Series, Tailhole, Tongue, Uncut, Various Species, Yiff, Yiffy

The Darkness Calls Part 4.5

Papyrus i love you but i think sans is kinda cute... 30 mins later wtf undyne please leave me alone!!!! i don't want your spears. why is this game so hard... i'll never beat this boss fight 3 hours later oh.. you run away from her.

Bear, Depression, Undertale, Video Games

King Asgore Dreemurr's Love (Undertale Fanfiction)

"undyne and i've originally kissed a little, so this shouldn't be too different," he thought. "then again, she was my ex-girlfriend, but i'm glad it's not interspecies."

Anthro, Anthropomorphic, Asgore, Asgore dreemurr, Breeding, Consensual, Couple, Cum, Domination/Submission, Ejaculation, Erection, Fanfiction, Female, Female Ejaculation, Goat, Impregnation, King, Kissing, Love, M/F, Male, Male/Female, Presenting, Romance, Sex, Short, Short Story, Toriel, Undertale, Vaginal, Virgin