Compulsive masturbation and dating
Manual stimulation of a partner, such as fingering, a handjob or mutual masturbation, is a common sexual act and can be a substitute for penetration.Studies have found that masturbation is frequent in humans of both sexes and all ages, although there is variation.Both sexes sometimes apply lubricants to reduce friction.Reading or viewing pornography, sexual fantasies, or other erotic stimuli may lead to a desire for sexual release such as by masturbation.The legal status of masturbation has also varied through history and masturbation in public is illegal in most countries.In the Western world, masturbation in private or with a partner is generally considered a normal and healthy part of sexual enjoyment.The glans itself may widen and lengthen as the stimulation continues, becoming slightly darker in colour, while the gliding action of the foreskin reduces friction.This technique may also be used by some circumcised men who have sufficient excess skin remaining from their circumcision.
The speed of the hand motion varies throughout the masturbation session.For males who have not been circumcised, stimulation of the penis typically comes from the "pumping" of the foreskin, whereby the foreskin is held and slid up and down over the glans, which, depending on foreskin length, is completely or partially covered and then uncovered in a rapid motion.The outer foreskin glides smoothly over the inner foreskin.Animal masturbation has been observed in many species, both in the wild and in captivity.The English word masturbation was introduced in the 18th century, based on the Latin verb masturbari, alongside the slightly earlier onanism. Suggested derivations include an unattested word for penis, *mazdo, cognate with Greek mézea μέζεα, "genitals", or alternatively a corruption of an unattested *manusturpare ("to defile with the hand"), by association with turbare "to disturb". Self-abuse and self-pollution were common in early modern times and are still found in modern dictionaries.