ADULT GUIDE · TERMINOLOGY, NOT INSTRUCTION
THREE TERMS.
ONE SMALL MAP.
Fellatio, cunnilingus, and anilingus are labels for categories of adult oral contact. This short, non-graphic guide names what each label refers to—and what a label cannot decide.
THE DIRECT ANSWER
THE THREE LABELS.
These terms identify the category being discussed. They do not describe how anything happens.
| Term | Neutral meaning in this guide | What the label does not answer |
|---|---|---|
| Fellatio | Oral contact with a penis. | A technique, a position, or what a person wants. |
| Cunnilingus | Oral contact with a vagina. | A technique, a position, or what a person wants. |
| Anilingus | Oral contact with an anus. | A technique, a position, or what a person wants. |
The map is deliberately small: a term names the contact category under discussion, not a person, role, preference, or required sequence.
What a label can do—and what it cannot
A label can give two adults a shared noun for the question they mean to discuss. That is its whole job on this page. It can reduce a vague phrase to a specific category without asking either person to supply more detail than they want to share. It keeps the terminology answer clear at a glance. It does not turn a category into an expectation, an instruction, or a promise.
That distinction is practical because several different questions can begin with the same term. Someone may be looking for a broad definition, trying to name a personal boundary, wondering about current agreement, or asking about a position. Those are separate questions with separate owners. Keeping the distinction visible helps this page answer the terminology question clearly without borrowing the work of those other pages.
KEEP THE QUESTION SEPARATE
A LABEL IS NOT AN AGREEMENT.
Knowing a category name can make a question easier to name, but a category label does not establish current agreement. Agreement is specific to what people want now and can change; people can pause or stop.
A preference or boundary question needs a direct conversation; this terminology guide cannot decide it. For the broader meaning of current agreement, read Consent.
RIGHT QUESTION, RIGHT PAGE
WHERE TO GO NEXT.
One label cannot carry every question. Choose the resource that owns the job.
- Broader definitionRead What Counts as Sex
- Preference or boundaryBring that question into a direct conversation; this guide cannot decide it.
- Current agreementRead Consent
- Position questionA position question is outside this terminology guide.
- Health questionThis guide does not answer it.
FAQ
KEEP THE SCOPE SMALL ON PURPOSE.
Is this a technique or positions guide?
No. It is a terminology guide. The table identifies labels and their limits only.
Does a category name establish agreement?
No. A category name does not decide what anyone wants; people can pause or stop. The Consent page above owns that broader question.
Can this page answer a health question?
No. This guide does not answer health questions.
Accuracy note: The three term pairings use the CDC definition section only. The narrow current-agreement framing uses RAINN’s consent guidance only. Neither source is used here for instruction, positions, or health guidance. Checked 2026-09-12.