Both sexes sometimes apply lubricating substances to intensify sensation.
Mutual masturbation (mutual manual stimulation of the genitals between partners) can be a substitute for sexual penetration.
Some people get sexual pleasure by inserting objects, such as urethral sounds, into the urethra (the tube through which urine and, in men, semen, flows), Some people masturbate by using machines that simulate intercourse.
Men and women may masturbate until they are close to orgasm, stop for a while to reduce excitement, and then resume masturbating. This "stop and go" build-up, known as "edging", can achieve even stronger orgasms.
Today, religions vary in their views of masturbation; some view it as a spiritually detrimental practice, some see it as not spiritually detrimental, and others take a situational view.
The legal status of masturbation has also varied through history and masturbation in public is illegal in most countries.