Such grounds and even the definition of pornography have differed in various historical, cultural, and national contexts. Typically, fisting does not involve forcing the clenched fist into the vagina or rectum; this is a practice called punching. Some masturbate only using pressure applied to the clitoris without direct contact, for example by pressing the palm or ball of the hand against underwear or other clothing. The naked appearance of actress Demi Moore in the advanced stage of pregnancy on the cover of Vanity Fair magazine in 1991 marked the beginning of a period which has since seen pregnancy presented by celebrities as a glamorous state of living, while also creating a market for photographers to produce images of pregnant mothers, and for fashion stylists to introduce pregnancy styling to their business. In some creampie films, both gay and straight, gay movies intercourse and internal ejaculation are followed by performers licking up the semen that has dripped from their bodies. Some pornographic films use an artificial semen substitute to simulate or enhance creampie shots. The choice of position takes into account the spankee comfort in the position for long periods of time, the spanker ability to swing at the spankee at a comfortable, natural angle, complete access to the spankee buttocks, the spanker control of the spankee position and ability to read just as necessary, safety, and the amount of strength the top is able to generate from such a position. In contrast, a celebrity may take the route of openly releasing the tape and benefit nude milfs directly from royalties as well as indirectly from the publicity. The neologism pegging was popularized when it became the winning entry in a contest in Dan Savage Savage Love sex advice column, held after lesbian hentai an observation was made that there was no common name for the act. HIV is among the infections that require such direct contact and is therefore very unlikely to be transmitted via mammary intercourse. Some may pursue fantasies that are concerned with the circumstances in which a subject may give birth, or to the conditions to which the pregnant subject may find themselves acting upon, such as approaches to mobility, sleeping, and dressing.
