Racing Stripe
A anrrow vertical slash of pubic hair.

Rack
Breast.

Ragdoll
A woman who is on the rag and still wants to fuck.

Raincoater
Person who buys substantial amounts of hardcore pornography.

Rainbow Sex
Performing oral sex on a woman while she is menstruating.

Raw
Sex without a condom; BAREBACK.

Reach Around
The act of performing anal sex on a man reaching around to the front to simultaneously give him a hand job.

Red Light District
An area of a city or town where prostitution is available.

Renifluer
A person who gets off on sniffing panties.

Retifism
The fetish for boots or shoes, is fairly common and is clearly linked to domination and power. May be linked to other clothing fetishes.

Reverse Anal Cowgirl
See Reverse Cowgirl and add in the idea that te male is presently in anal.

Reverse CowgirlReverse Cowgirl
Woman facing away from man while sitting on his cock.

Reverse Gangbang
When four or more girls fuck one guy.

Rice Queen
A gay man that exclusively prefers Asian men.

Rimming, Rim Job
Performing oral sex on the anus, especially licking the edge of the anus. See also ANILINGUS.

Robot Fetishist
One who pretends to be, or who has a lover pretend to be a robot.

Roman Shower
Vomiting on partner, usually after drinking urine..

Role Play
In role-playing, participants adopt characters, or parts, that have personalities, motivations, and backgrounds different from their own. Role-playing is like being in an improvisational drama or free-form theatre, in which the participants are the actors who are playing parts.

Rubber
1. CONDOM.
2. Substance made from latex.

Rubberist
A Rubberist is a person with a fetish for rubber, latex or, more loosely, PVC clothing.

Russian
Penis between her breasts. Also See TIT FUCK

Rusty Trombone
When someone licks a man's ass and reaches around to the front to masturbate his penis. So called because it appears that the person is blowing into the ass and manipulating the penis like a musical instrument.

Sacofricosis
Cutting a hole in pant pocket to facilitate masturbation in public.

Sadism
Getting sexual pleasure by inflicting pain, discomfort, or humiliation on someone. See also BDSM.

San Juan Capistrano
BBBJTC and she swallows.

Sapphic
Of or relating to lesbians.

Scat
Sex play involving shit. See also COPROPHILIA.

Scissor Fight
When two women press their vaginas together by intertwining their legs; tribadism.

Score
To have sex. Especially used to describe a man having sex with a woman for the first time.

Screwnicorn 
When a lesbian puts her STRAP-ON dildo on her forehead and proceeds to go at her partner like a unicorn.

Scrotum
The sack that holds the testicles.

Semen
The sperm-containing fluid that a man expels when he has an orgasm; CUM.

Sensory Deprivation
Sensory deprivation refers literally to the artificial deprivation of the senses – auditory, visual, tactile and kinesthetic.

Sex Addict, Sexual Addict
Someone with a compulsive, often self-destructive need to engage in sexual activity.

Sexpert
Someone who has gained a reputation as being an expert on sex, especially someone who appears in the media talking about sex.

Sex Surrogate
A counselor who helps people with their sexual problems by engaging in sexual activity with them.

Sex Therapist
A counselor or psychologist who helps people with their sexual problems.

Sex Toy
An object designed to enhance sexual pleasure. Examples include a dildo or vibrator.

SFH
Sex for hire.

Shaft
Referring to an erect penis, the area from the base to (but not including) the head.

Shag
Synonymous with screw.

Shemale
A transsexual who has not yet undergone a complete sex change, so that he has both breasts and a penis.

Shibari
Shibari involves tying up the bottom in intricate patterns, usually with several pieces of thin rope. Shibari differs from Western bondage in that, instead of just immobilizing or restraining the bottom, the bottom gains pleasure from being under pressure and strain of the ropes, squeezing the breasts or genitals.

ShockerShocker
When you insert your index and middle fingers in the woman's vagina and pinky in her anus.

Shonen-ai
Boy Love.

Shore Dinner
A gay man viewed by or who views a sailor as a potential oral sex partner.

Shrimp, Shrimping
Licking or sucking someone's toes during sex.

Size Queen
A gay man who is especially interested in partners with large penises.

Sixty-Nine (69)
Oral sex performed by two people on each other simultaneously. Called "69" due to the shape of the two numerals, which suggests the sex act.

Skank
Slang. A harsh, skinny, female junkie.

Skeet
Slang. Semen, or the act of ejaculation.

Skiing
While facing in the same direction, a girl gets between two guys and jerks them both off, thus imitating cross-country skiing.

Slut
A derogatory term for a woman who has had many sexual partners.

S&M
See BDSM.

Smegma
A white, cheesy substance secreted by the sebaceous glands that collects under the foreskin.

Smut
Pornography.

Smurf
Slapping someone in the face with your penis.

Snake Bite
The application of a suction cup to the skin as part of S&M.

Sniffer's Row, Sniff Row
The row of seats nearest the stage in a strip club.

Snoodling
When an uncircumcised GAY man pulls his extra foreskin over the cock of another GAY man and proceeds to jerk him off.

Snowball, Snowballing
After a man ejaculates in someone's mouth, passing the semen back and forth between partners.

Snow Blow
Performing oral sex on a man with ice cubes in your mouth.

Snowmobile
When having sex DOGGIE STYLE, sweep out her arms so she falls on her face.

Snow Queen
A black man who only dates white men.

Sodomy
A legal term, usually denoting anal sex or oral sex performed on a man.

Soft Butch
A butch lesbian with a soft side and gentle demeanor.

Softcore
Sexual pictures, movies, etc. that do not show penetration and usually do not show an erect penis. Opposite of HARDCORE.

Soixante Neuf,(69)
Partners perform oral sex on each other simultaneously.

Southern France
Fellatio without a condom.

Spanish Fly
A supposed aphrodisiac potion, sometimes put surreptitiously into the drink of a partner to make them sexually interested.

Spermicide
A substance that kills sperm, often applied to a condom or other contraceptive device.

Spinner
A very petite girl. Etymology: From the 1970's toy, "Sit 'n' Spin"

Spoon, Spooning
When two people lie parallel on their sides facing in the same direction. Usually with a man pressing his crotch against a woman's ass.

Spreader Bar
Item used to hold limbs apart, usually the ankles.

Spunk
SEMEN.

Squirting
Female ejaculation.

STD, Sexually Transmitted Disease
Any disease transmitted through sexual contact. See VENEREAL DISEASE.

Straitjacket
A straitjacket is a garment shaped like a jacket with overlong sleeves. The ends of these can be tied to the back of the wearer, so their arms are kept close to their chest with possibility of only little movement. They are used to restrain people who may otherwise cause harm to themselves and others, in hospitals for instance.

Stranger
Sitting on your hand until it falls asleep and then jerking off, eliciting the feeling of a hand job from someone else.

Stranger On The Rocks
Numbing your hand by sticking it in a bucket of ice and then jerking off.

Strap-OnStrap-On, Strap-On Dildo 
A DILDO that is worn by someone, attached to a harness, so that it can be thrust into a partner like a penis.

Stripper
Someone who exposes his or her nude or semi-nude body for money.

Sub
SUBMISSIVE.

Submissive
The person who is dominated in a BDSM relationship.

Succubus
A female spirit who was thought to lie under men, have sex with them while they slept.

Suitcase Pimp
Term used to describe the unemployable, parasitic husbands or boyfriends of female porn stars.

Sukaranbo
Cherry, Another term for a MATANAWA

Summer Teeth
Her teeth, some are there, some are not.

Surfing
This happens when you have sex with a BBW. As you watch the rippling effect of her rolls with every thrust, along with the feeling of being drenched, off balance, out of control, and in danger, you are given the sense of riding a wave.

Switch Hitter
Slang for a bisexual person.

Sybian
A toy, for women, that is straddled like a horse, which has a vibrator on the top. One can control the amount of vibration and how it spins.

Switch
Someone who can act either as a dominant or submissive in BDSM play.