The SmutWords Glossary

Every trope, kink, fetish, and dynamic explained in plain language — plus real books to read for each one.

All Tropes Kinks Fetishes Dynamics Practices
All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
trope

Baby Daddy Romance

A story where the hero and heroine become parents, often unexpectedly, and navigate pregnancy, childbirth, and early parenthood while falling in love, with the hero stepping into the fatherhood role either before or after the baby arrives.

trope

Baker Romance

A romance subgenre where the protagonist is a baker or pastry chef, and the love story often unfolds in a bakery, café, or patisserie with a heavy focus on tactile, sensory details like flour, sugar, and warm ovens.

kink

BDSM

BDSM is the umbrella term for consensual power exchange, bondage, discipline, dominance, submission, sadism, and masochism, shaping both the physical acts and the psychological roles in a scene or relationship.

dynamic

Bear Shifter Romance

A romance featuring a male protagonist who shifts between human and bear form, often a burly, protective, and possessive mate who claims his partner with primal intensity. The bear shifter usually embodies strength, gruffness, and a fierce instinct to shelter his love, blending wilderness with raw desire.

trope

Beauty and the Beast Retelling

trope

Best Friend's Brother

A romance trope where the heroine falls for her best friend's brother — usually the one she's known for years from sleepovers and family dinners but never looked at twice until now. The romantic risk sits on the friendship: if it goes wrong, she doesn't just lose the guy, she risks losing her best friend too.

trope

Best Friend's Sister

A plot setup where the hero pursues or falls for his best friend's sister, often with secrecy, guilt, and loyalty conflicts driving the tension.

dynamic

Big Cat Shifter Romance

A romance subgenre where the hero or heroine can shift between human form and that of a large feline like a lion, tiger, leopard, or panther, often with the animal instincts bleeding into their human personality, especially during mating or protection scenes.

trope

Big City Romance

A romance plot where the central love story unfolds against the backdrop of a major metropolis, often using the city's landmarks, nightlife, and cultural pulse to amplify the intensity and stakes of the relationship.

trope

Billionaire Romance

A story where a wealthy, powerful hero falls for an ordinary heroine, often involving lavish gifts, penthouse living, and a contract or arrangement that turns into real love.

kink

Biting Kink

A kink where biting, nibbling, or leaving teeth marks on a partner's skin is a primary or significant source of arousal, often tied to dominance, possession, or raw desire.

trope

Blind Date Romance

A story where two characters meet for a first date arranged by a third party, usually a well-meaning friend or family member, and the chemistry either sparks immediately or builds through awkward, charming misunderstandings.

kink

Blindfold Play

Blindfold play is a sensory deprivation practice where one partner covers the other's eyes during intimacy, intensifying every touch, sound, and taste by removing sight.

practice

Blood Play

A kink in which blood itself is the erotic focus, whether through cutting, piercing, biting until blood is drawn, or the sight and taste of blood during a scene. In romance and erotica it often appears alongside vampire characters or as an intense edge-play practice between human partners.

kink

Blue Balls Kink

A kink where a character (usually male) is brought to the edge of orgasm repeatedly or left aroused and unsatisfied, with the ache of unrelieved arousal treated as the point of the scene rather than a problem to solve. Readers encounter it as denial play, ruined finishes, or a partner who deliberately withholds release.

fetish

Body Fluid Kink

Body Fluid Kink is a fetish where arousal is centered on the exchange or presence of bodily fluids, such as saliva, sweat, tears, or sexual secretions, often integrated into scenes for visceral intimacy or taboo thrill.

kink

Body Worship

Body worship is a kink where one partner devotes focused, reverent attention to another's body, often through kissing, licking, touching, and verbal praise, treating each part as sacred. It can center on specific features like feet, hands, or the entire form, and often involves a power dynamic of adoration or submission.

trope

Bodyguard Romance

A story where a professional protector and their client fall in love, often with the protector's duty clashing with their growing feelings. The tension comes from forced proximity and the constant threat that makes their intimacy both dangerous and inevitable.

kink

Bondage

Bondage is the practice of physically restraining a partner's movement using ropes, cuffs, tape, or other materials, often as a central element of power exchange or heightened sensory play in erotic scenes.

practice

Bondage Safety

The set of practical precautions, communication practices, and physical limits that keep rope, cuff, and restraint scenes from going wrong in romance and erotica narratives. It includes checking circulation, having safety shears on hand, and agreeing on a safeword before the first knot.

trope

Boss/Employee Romance

A workplace romance trope where a protagonist falls for their direct superior or subordinate, often navigating power dynamics, office gossip, and the risk of professional ruin alongside the heat of the affair.

kink

Brat

A brat is a submissive who playfully resists or talks back to their dominant to provoke a reaction, often pushing limits in a fun, teasing way before ultimately submitting. This dynamic is about the chase and the surrender, not actual defiance.

kink

Brat Taming

Brat taming is the dynamic where a submissive partner deliberately misbehaves, sasses, or breaks rules to provoke their dominant into a firmer, more assertive response, with the tamer's reassertion of control being the payoff. It's a consensual game of resistance and reward, where the brat's defiance is an invitation for a stronger hand.

kink

Breakup Sex

Breakup sex is the intense, emotionally charged hookup a couple has after deciding to end their relationship, often blurring the line between goodbye and one last chance to feel each other.

fetish

Breast Fetish

A focused sexual attraction to breasts, encompassing their shape, size, feel, and the acts of kissing, sucking, and caressing them as a primary source of arousal.

kink

Breath Play

Breath play is a kink where partners intentionally restrict or control airflow during intimacy, heightening sensation and arousal through the deliberate manipulation of breathing.

practice

Breath Play JOI

A masturbation-focused scene or audio script, often built around jerk-off instructions, in which the person directing things controls the listener's breathing through timed holds, counted pauses, or choking commands. The breath control is woven into the verbal guidance rather than treated as a separate act.

practice

Breeding Bench Scene

A sex scene built around a specialized piece of furniture, the breeding bench, which positions the receiving partner bent over on hands and knees, hips raised and often restrained, so the other partner can take them from behind in a breeding or mating-press context.

dynamic

Breeding Farm Trope

A story where one character is kept, often in a rural or isolated setting, specifically for the purpose of producing offspring, usually under the control or arrangement of another character or group. The trope leans into primal urges, reproductive control, and the forced intimacy of a shared biological goal.

kink

Breeding Kink

Breeding kink is a fantasy or roleplay centered on the erotic idea of impregnation, whether the goal is literal conception or just the power and intimacy of the act itself. It often shows up in romance as a possessive, primal desire between partners, but the story may or may not include an actual pregnancy.

trope

Brother's Best Friend

A romance trope where the heroine falls for her own older brother's best friend — the guy who's been crashing on their couch and eating their mom's cooking since high school. The gatekeeper here is her own brother, which makes the secrecy a direct break of his trust rather than just an awkward family dinner.

dynamic

Bull Dynamic

A dynamic where a dominant third party, the bull, is brought into an existing relationship to sexually satisfy one partner while the other watches, waits, or participates on the sidelines. The bull usually takes the alpha or hyper-masculine role, and the cuckold partner surrenders sexual access by choice.

trope

Bully Romance

A romance where the hero (or heroine) is the protagonist's former tormentor, and the relationship develops from cruelty into reluctant attraction and eventual love, often with the bully seeking redemption.