Bondage (BDSM)

Bondage is the practice of consentually tying, binding, or restraining a partner for erotic, aesthetic, or somatosensory stimulation. Rope, cuffs, bondage tape, self-adhering bandage, or other restraints may be used for this purpose.

Bondage itself does not necessarily imply sadomasochism. Bondage may be used as an end into itself, as in the case of rope bondage and breast bondage. It may also be used as a part of sex or in conjunction with other BDSM activities. The letter "B" in the acronym "BDSM" comes from the word "bondage". Sexuality and erotica are an important aspect in bondage, but are often not the end in itself. Aesthetics also plays an important role in bondage.

A common reason for the active partner to tie up their partner is so both may gain pleasure from the restrained partner's submission and the feeling of the temporary transfer of control and power. For sadomasochistic people, bondage is often used as a means to an end, where the restrained partner is more accessible to other sadomasochistic behaviour. However, bondage can also be used for its own sake. The restrained partner can derive tactile pleasure from the feeling of helplessness and immobility, and the active partner can derive visual pleasure and satisfaction from seeing their partner tied up.

Many couples incorporate bondage into their sex lives, often sporadically but sometimes more regularly, and find sexual bondage to be relationship-affirming. This sometimes takes the form of a sex game or sexual fantasy enactment. Bedroom bondage games are commonly used as a form of foreplay. They require and imply a level of trust and a surrender of control by the restrained to the active partner. The restrained partner (called a bottom) surrenders control to the other partner (called a top). This surrender of control happens voluntarily and under mutual understanding and consent.

...
Wikipedia