Human sexual activity (most commonly known as sex) is the manner in which humans experience and express their sexuality, whether to reproduce, for pleasure and/or love. Sex can happen in many ways, ranging from those done alone (male, female or anal masturbation) to acts with two or more people (oral sex, sexual intercourse, anal penetration, frottage, mutual masturbation etc.).
Sex depends on several factors to happen, but primarily consense.
Unlike what many think, someone who identifies as asexual can still like
to have sex and enter a sexual relationship, most commonly based on non-penetrative sex, but may or may not include penetration; while someone who identifies as apothisexual is sex-repulsed.