Domination & submission _ the BDSM relationship handbook ( PDFDrive )

Eloctrostimulation. (See Electricity play, EMS Unit, TENS unit, Violet Wand)
EMS Unit. EMS stands for Electrical Muscle Stimulation. EMS units are
typically used in medicine, sports training, cosmetic treatments, and in therapy to
produce repeated muscle contractions through electrical stimulation. EMS
devices range in quality and complexity from the very intricate and expensive
machines used by medical and sports professionals to the simpler, less expensive
devices marketed to the flabby masses via late-night infomercials. The odd
experience of having your muscles stimulated electrically to involuntarily
contract and release in rapid succession makes the EMS unit an interesting
option for BDSM sensation play. (See also: Electricity play, TENS unit, Violet
wand)
Enema. Refers to the introduction of fluids into a person’s rectum and colon,
which results in an uncomfortable expansion of the lower intestinal tract. This
procedure, which is done medically to treat conditions like constipation and
encopresis, or to administer certain drugs, is sometimes done for recreational
purposes by some in the BDSM lifestyle as part of control scenes, humiliation
play, medical play, bathroom use restrictions, or punishment. (See also:
Bathroom Use Restrictions, Brown showers, Medical Play, Humiliation)
Enforced Chastity. The practice of preventing one’s submissive from engaging
in any kind of sexual activity or stimulation involving the genitals. This may
involve wearing a device such as a chastity belt or some other secure appliance
around the groin area, or even bulky mitts or sleeves on the hands and arms to
prevent masturbation. (See also: Arm Sleeves, Chastity Belt, Mitts, Orgasm
Control)
Everyday Collar. (See: Day collar)
Eye Contact Restriction. This refers to the practice of forbidding or restricting
direct eye contact between a submissive and his or her Dominant, and in some
cases, other individuals. Eye contact restrictions are more common in the
Gorean tradition, where slaves are traditionally taught to lower their gaze in the
presence of Masters, but they may be practiced in a variety of other kinds of
relationships and situations, as well. (See also: Gor, Protocol.)
Facesitting. Face sitting, also sometimes referred to as queening, is typically a
form of humiliation play that involves sitting on another person’s face in such a
way as to force the Dominant’s genitals or anus into the submissive’s mouth.