Adult Male over 18, Adult Female over 18
Teen Male under 18, Teen Female under 18
Adult Male over 18, Teen Female under 18
Teen Male under 18, Adult Female
2 or more Females over 18
2 or more Teen Females under 18
Adult Female, Teen female under 18
2 or more Adult Males over 18
Adult Male, Teen Male under 18
2 or more Teen Males under 18
Multiple Partner. ie MFF or mmmF, (done like this because of the endless combinations that cannot be all included)
Cast of story is mostly teenagers
Blackmailing somebody to force them into the sex act depicted
Not exactly blackmail, but applying different kinds of pressure to force into the act.
All parties are consenting to the act
One party at least is Drunk or drugged and participates while under the influence without really knowing
One party using hypnosis for sexual purposes
Contains magic and supernatural phenomenons
Stories where one party somehow controls another's mind
At least one of the parties is not participating willfully
Stories with violent rape
Start as non consentual and then the non consenting party participates willingly
Mushy love story
Slavery, sexual or otherwise
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Men dressing as women and in women clothing, also vice-versa
Person having both male and female genitalia
Gender crossing, mostly men turning into women
Character that are both male and female. They have breasts, penis and vagina.
Fictitious story, not true
A true story, according to the author.
Story centred on or involving crime
High Fantasy, sword and sorcery and such
Horror Elements in the story, erotic or otherwise.
Contains humor or the story is a spoof
Story in a Military setting
Mostly in an educational setting (high-school, college, University)
Set in the old US west
Story centres around a workplace setting
Different from bestiality, it's about relationships between humans and animals, not just sex.
Science Fiction
Science fiction stories with Aliens in them
Post Apocalyptic world
Story set in outer space
Ghosts, angels, spirits, poltergeists, etc
Anthropomorphic animals or 'taurs' (animal bodies with anthropomorphic torsos) it also includes other forms such as dragons.
Ghosts
Stories with demons in them
One party is cheating on their partner
When man is being forced to accept his wife's cheating against his will.
Partner has sex with selected others
Slutty wife
Man enjoys watching his wife having sex
Husband does not stand up for himself when faced with a cheating wife
Sex between blood-related members of the same family
Incest involving mothers
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Bondage and/or SadoMasochism
Story about domination, being sexual or otherwise
Male Dominant
Female Dominant
Degradation of somebody in the story and/or humiliating them publicly
Light Bondage, usually consentual and for experimentation at the request of the one of the parties
Rough sex
Somebody inflicting pain, physical or mental, for the hell of it
Killing being done during the act of sex. (Non-sexual murder is in violent)
Somebody gets spanked in the story, willingly or unwillingly
Self Explanatory
Multiple men fucking same woman
Multiple couples in the same place or a threesome
There is a harem involved in the story. A traditional old fashion harem, is where an old sultan has a collection of women housed in a palace for his own pleasure. Could apply for newer setting stories where a similar situation exists.
Everybody is Fucking everybody in a group
Trading Sexual Partners
Sexual partners of different races
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Female from the indian sub-continent
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The act of licking the anus
Sex with animals
Somebody licks a pussy full of cum
Simultaneous Anal and Vaginal Penetration
Getting an enema as a sexual thing
Enjoyment of self exposure
One of the parties having sex is a virgin
Hand and arm or foot insertion
Sex where food is involved, like doing it to a pie or shoving a carrot
Drinking and playing with human milk
Self pleasuring, could be alone or while with somebody else but no intercourse
Sex with a corpse
Self Explanatory
A woman performs anal sex on a man with a strap-on dildo
Feeling up and such
Somebody gets pregnant in the story
Sex with proper protection
Playing with feces
Sex with the help of sex toys, such as dildos and vibrators
Spitting as a sexual fetish
Female Ejaculation
Getting sexual pleasure from thrusting the penis between a pair of bountiful breasts
Enjoyment of watching other people without their knowledge
Peeing on each other
Sex with babysitters fetish
Big Beautiful Woman. Loving Big Women
Women with Big Breasts
Erotic body modification, including piercings and tattoos, play a prominent role.
Involving members of the clergy (Priest, Bishops, nuns)
Medical Fetish, Doctor or Nurse Play a prominent role in the story
Foot fetish
Fetish with hairy men/women
Leg fetish, often with stockings, garters and heels.
Sex play with a woman who's on menstrual cycle
Includes injections and play or permanent piercings.
Sexual events taking place in public
Where the size of the sex parts (penis, breasts, toys) plays a major role in the story
Small Breasts fetish. Story where small breasts play an important role.
Teacher/student relations
Story written from the 2nd person POV
Women having a cat fight
Story contains something that can't be classified but requires caution on the reader's part
Erotica written in Indian Style
Features scenes set in a naturist/nudist environment
Story has events in a porn theatre or Adult bookstore
Prostitution elements
One party gets revenge for being wronged
There is a story and plot development before any sex occurs. Not a stroke story.
Un-natural physical transformation
Violence in the story, not necessarily of sexual nature
Story written in 4chan style/green text