S&M
Abbreviation for "sadism and masochism". Generally used to describe an activity or group of activities that involve inflicting or receiving pain as a form of gratification.


Sadism
Deriving pleasure from causing physical or emotional pain on another person.


Sadomasochism
Sexual practices where an individual derives pleasure from inflicting pain or humiliation onto others or oneself.


Sadomasochist
One who practices sadomasochism.


Safe Sex
Sexual encounter in which each individual protects themselves against disease, usually by using a condom or avoiding contact with bodily fluids.


Safe Word
A certain word, used in BDSM activity, which means that the current activity must stop.


Sahasara
Tantric sex term for the 7th Chakra.


Salacious
Arousing sexual desire.


Samadhi
Tantric sex term for deep meditation.


Scat
Slang for feces.


Shlong
Slang for a large penis.


Score
Slang for achieving sexual activity with a desired partner.


Screw
Slang for sexual intercourse.


Scrotal Sack
Synonym for the scrotum.


Scrotum
The sack of skin and thin muscle surrounding a man's testicles.


Second Base
Slang for foreplay, usually touching the breasts or genitals.


Self-gratification
Term for masturbation.


Semen
The fluid that is ejaculated from the penis during orgasm.


Semen Analysis
The evaluation of ejaculate for sperm volume, count and motility.


Serial Monogamy
Having a series of consecutive committed romantic relationships over a long period of time, usually many years or over a person's lifetime.


Sex
Used to describe the act of reproduction between males and females or a term which distinguishes between the two genders.


Sex Act
Referring to a certain sexual position or act.


Sex Addict
An individual who is addicted to sex.


Sex Aids
Sex toys, usually vibrators and dildos.


Sex and the City
A cable television show produced by HBO that follows the lives of a group of fictional middle aged women living in New York City. Sex and the City introduced rabbit vibrators to millions of women and brought this vibrator style into the mainstream. A common misconception is that the Jack Rabbit Vibrator was featured in the infamous episode titled "The Rabbit", but in fact the vibrator that the character Charlotte loved so much that she became a recluse was the Rabbit Pearl, which is similar to the Jack Rabbit but made by a different manufacturer.


Sex Appeal
Being sexually attractive to the opposite sex.


Sex Cell
A term for a reproductive cell.


Sex Drive
The primary desire to have sex.


Sex Furniture
Any furniture that can be used as an aid to sexual activity.


Sex Lube
A lubricant used during sexual activity.


Sex Object
A person who is regarded only as an object of sexual desire.


Sex Swing
A type of sex toy that resembles and functions much like a standard swing. A sex swing attaches to a fixed object, usually within the home, and allows the users to move back and forth freely with the goal of facilitating unique sexual positions.


Sex Toy
A toy or device used to increase sexual pleasure and provide added erotic stimulation, such as a vibrator or dildo.


Sex Toy Fetish
Having a fetish relating to sex toys.


Sexism
Having bias against a certain gender.


Sexologist
A person who studies sex and the interactions between males and females.


Sexology
The study of sex and human sexuality.


Sexpert
A sex expert; combination of the word sex with expert.


Sexual
Adjective; pertaining to sex.


Sexual Activity
Any activity that is sexual in nature.


Sexual Addiction
The condition of being habitually or compulsively occupied with or involved in sexual activity.


Sexual Aid
Synonym for sex toy, such as a vibrator or dildo.


Sexual Arousal
The state of being sexually excited or aroused.


Sex Bandit
A person who lies, or who is insincere or mischievous in their pursuit of sex.


Sexual Attraction
A desire to have sexual or erotic activity with other members of the same species.


Sexual Dimorphism
The broad and consistant differences in form between members of different sexes within the same species.


Sexual Dysfunction
Physical and mental difficulties with arousal, lack of desire, fear of intimacy and overactive sexual activity.


Sexual Harassment
Unwelcome and unsolicited sexual comments or sexually explicit actions designed to intimidate or degrade another person.


Sexual Immorality
Biblical term. Refers to intercourse between unmarried people.


Sexual Intercourse
The act of inserting an object, usually the penis, into the vagina or anus.


Sexual Orientation
Sexual identification, as defined by a person's sexual relationships or affinity.


Sexual Response
Physiological changes that occur within the body during sexual stimulation. The four phases of sexual response are excitement, plateau, orgasm and resolution.


Sexual Selection
The theory initially proposed by Charles Darwin that states that the frequency of traits within a species can increase or decrease depending on the attractiveness of the bearer.


Sexuality
Referring to the sex of a person, or the state of being sexual.


Sexualize
To raise sexual awareness or to make sexual.


Sexually Transmitted Diseases
Any disease - such as syphilis, gonorrhea, herpes, genital warts or AIDS - which can be passed to another person during sexual activity.


Shaft
The shaft of the penis. The length of the penis between the scrotum and the head.


Shag
Slang for sexual intercourse.


Shemale
A transsexual who has not undergone gender reassignment surgery.


Shingles
A skin condition caused by re-activation of a varicella zoster virus infection, usually acquired during childhood.


Shocker
The act of simultaneously inserting two fingers into the vagina and one into the anus.


Shrimping
The act of licking or sucking a partner's toes.


Significant Other
An individual's romantic partner.


Silicone
A material used to make sex toys. Silicone is a high-quality material that is not effected by oil-based lubricants or high temperatures.


Silicone Dildo
A dildo made from silicone. Silicone dildos are resistant to most types of lubrication and don't require special cleaning, as is required for jelly or latex dildos.


Silicone Vibrator
A vibrator whose shell or sleeve is made of silicone. Silicone vibrators are often waterproof and can be cleaned with any mild soap or sex toy cleaner. Silicone vibrators or silicone sleeves are impervious to oil-based lubrication.


Silver Bullet
Slang for vibrator.


Sixty-nine
Slang for mutual oral stimulation by two individuals.


Skee
A prostitute, or a woman who is considered promiscuous


Skeet
Semen, or the act of ejaculation.


Slave
A submissive person who is involved in a slave/master fantasy.


Slave Training
The instruction of a submissive person in a dominant's preference.
 

Sleeve
A thin piece of material, usually Cyberskin, jelly or latex, that slips over a vibrator to give it more texture and thickness.


Slimline Vibrator
A vibrator that is cylindrical and is curved at the tip. A traditional vibrator is almost always a slimline variety. Slimline vibrators have been around for many years.


Slut
Slang for a woman who has or who has had many sexual partners.


Smegma
The white or yellowish substance, consisting of dead skin cells, which collects under the foreskin of the penis.


Smooth Dildo
A dildo with a smooth surface. Opposite of veined dildo.


Snatch
Slang for the vagina.


Snog
Slang for making out, or heavy kissing.


Snowball / Snowballing
The act of transferring semen from one person's mouth to another, usually female to female.


Snowblowing
Kissing your partner after they ejaculate in your mouth, without expelling the semen.


Sodomy
The insertion of the penis into the anus.


Soft Swap
Partner swapping, or allowing your partner to have sex with someone else in your presence.


Soft Touch
A soft, skin-like material commonly used to make realistic sex toys.


Spanish Fly
Slang for a substance used to increase sexual desire.


Spanking
Striking or paddling a submissive partner.


Speculum
An instrument used to spread the vagina open so that the cervix can be seen.


Sperm
Semen; the male gamete.


Sperm Agglutination
Sperm clumping caused by antibody reactions or by infection.


Sperm Antibodies
Antibodies that attack and maim sperm. May be formed by either the man against his own sperm or by the woman against her husband's sperm.


Sperm Bank
A place where sperm are kept frozen in liquid nitrogen for later use in artificial insemination.


Sperm Count
The number of sperm in ejaculate. Also called sperm concentration and given as the number of sperm per milliliter.


Sperm Competition
The competition between sperm of two or more males for the fertilization of an ovum.


Sperm Maturation
A process during which the sperm grow and gain their ability to swim. Sperm take about ninety days to reach maturity.


Sperm Morphology
A semen analysis factor that indicates the number or percentage of sperm in the sample that appear to have been formed normally.


Sperm Motility
The ability of sperm to swim. Poor motility means the sperm have a difficult time swimming toward the female egg.


Sperm Penetration
The ability of the sperm to penetrate the egg so it can deposit the genetic material during fertilization.


Spermatogenesis
Sperm production in the testicles.


Spermicide
An agent, usually a chemical, that kills sperm.


Spew
Slang for ejaculation.


Spit
The act of expelling semen from the mouth after ejaculation resulting from oral sex.


Sponge
An absorbent contraceptive device that is impregnated with spermicide and inserted into the vagina before sexual intercourse to cover the cervix.


Spontaneous Abortion
A pregnancy loss during the first twenty weeks of gestation.


Spoon / Spooning
Slang for two people lying parallel on their sides, "cuddling", while facing the same direction.


Spunk
Slang for semen.


Squirt
Slang for female ejaculation.


STD
Abbreviation for Sexually Transmitted Disease.


Sterility
An irreversible condition that prevents conception.


Stillbirth
The death of a fetus between the twentieth week of gestation and birth.


Stinky Pinky
Slang for female masturbation or inserting a finger into the anus.


Straight
Slang for a heterosexual person.


Strap-on / Strap on
A dildo that is worn around the waist, via a strap.


Street Walker
Slang for a prostitute


Stub
Slang for the penis.


Stud
Slang for a male who has frequent and varied sex partners.


Sub
Short for Submissive.


Sublimate / Sublimation
The unconscious act of converting instinctual drives and urges into actions that are considered socially acceptable.


Submissive
The person who is dominated in a BDSM relationship.


Suck Face
Slang for making out, or heavy kissing.


Suck Off
Slang for oral sex.


Sugar Daddy
Slang for a man who financially supports a younger person in return for sexual favors.


Swadhistana
Tantric sex term for 2nd Chakra.


Swap / Swapping
Trading sexual partners, usually within a group.


Swinger
Slang for a person who is in a committed relationship, but who engages in sex with multiple partners with the partner's knowledge.


Switch
When a person trades places in a SM role or physical play.


Switch Hitter
Slang for a bisexual person.


Swallow
The act of swallowing semen after ejaculation resulting from oral sex.

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