Narratophilia
A paraphilia where a person is extremely aroused by erotic conversations.
Nasophilia
A paraphilia where a person is extremely aroused by touching a partner's nose.
Natural Family Planning
A birth control method in which a couple does not have intercourse during a certain period of a woman's menstrual cycle. Many physicians believe this method to be unreliable.
Necrophilia
A paraphilia where a person is extremely aroused by deceased individuals.
Neophilia
A paraphilia where a person is extremely aroused by anything new.
Net Pornography
Pornography on the internet.

Newbie

A novice hobbyist or novice provider.
Nirvana
Tantric sex term for the ultimate spiritual place.
Non-conforming Gender
Acting in a way that does not conform to the social norm of either male or female behavior.

Non-gender Specific
Synonym for bisexual.

NGP

Non Genuine Photos
Non-orthogenic Sex
Any type of sex other than for procreation.
Nookie
Slang for sexual activity.

Nooner
Slang for a sexual encounter during lunch session, popular with married hobbyists.

No-Show (NS)

Escort or Client never shows up for an appointment, does not contact in advance to cancel or warn.
No-Touch

No touching allowed. (e.g. No-touch Jack shack, no-touch strip club)
NQBC

Non-quitter, but covered. CBJ to completion.
NQBS

Non-quitter, but spitter. BBBJTC and spits your ejaculate.
NQNS

Non-quitter, non-spitter. BBBJTC and swallows your ejaculate.
NSA

No Strings Attached.
Novelty Item
Usually refers to adult toys such as vibrators, dildos, cock rings, love dolls etc.

NSNC

No Show, No Call

Nubs
Slang for breasts; also refers to the small bumps on a vibrator that provide extra vaginal or clitoral stimulation.
Nuts
Slang for the scrotum.
Nyctophilia
A paraphilia where someone is extremely aroused by darkness or night.
Nymphomaniac
Slang for a woman who desires frequent sex or sex with many different partners.