Oral stimulation of nipples is a sexual act of humans.

Stimulation of nipples is a common human sexual practice, either for itself or as part of other sexual activities.

Stimulation of nipples - stimulating the nipples, usually orally or manually.

Oral stimulation of nipples.

The oral or manual stimulation of nipples is commonly performed on women by a partner, either for itself or as part of other sexual activity.

Breast and nipple stimulation of women are a near-universal aspect of human sexual activity, but stimulation of nipples of males is not as common.

Stimulation of nipples may result in nipple erection due to the contraction of smooth muscle under the control of the autonomic nervous system and are a product of the pilomotor reflex which causes goose bumps.

Otherwise, the objective is the same, which is to immobilise the limbs and render the tied person accessible and vulnerable to a range of sexual play, such as stimulation of nipples, erotic massage or tickling, or sexual stimulation without the ability for the tied person to interfere with the play.