Anal sex or
anal intercourse is generally the insertion and
thrusting of the
erect penis into a person's
anus, or anus and
rectum, for sexual pleasure. Other forms of anal sex include
fingering, the use of
sex toys for anal penetration,
oral sex performed on the anus (
anilingus), and
pegging. Though the term
anal sex most commonly means penile-anal penetration, sources sometimes use the term
anal intercourse to refer exclusively to penile-anal penetration, and
anal sex to refer to any form of anal
sexual activity, especially between pairings as opposed to
anal masturbation.