A study of the condom usage habits of New Zealand sex workers said that they offered various safe sex alternatives to vaginal sex to clients who refused to wear a condom. Instead, all five fingers horny milfs are kept straight and held as close together as possible , then slowly inserted into a well lubricated vagina or rectum. The primary subjects of pornographic depictions are pornographic models, who pose for still photographs, and pornographic actors or porn stars, who perform in pornographic films. Female masturbation involves the stroking or rubbing of a woman vulva, especially her clitoris, with an index or middle fingers, or both. See also Gay-for-pay. A spanking may be carried out with the use of a bare or gloved hand, or with any of a variety of implements, including a paddle, strap, hairbrush, feather duster or belt. A related term used in the genre is the term cougar, which implies an older woman as predator. By comparison, gonzo pornography puts the camera right into the action, often with one or more of the participants gay fuck both filming and performing sexual acts, without the usual separation between camera and performers seen in conventional porn and cinema. The Girls Gone Wild 3d hentai series is one example. While wearing diapers, a diaper fetishist generally experiences a comforting feeling. A smotherbox gives a more dramatic experience . Crush pornography features objects being crushed by an actress or actor, who generally plays an overtly dominant role. Buttocks are sometimes emphasized in pornography, where they are often referred to as booty. Patricia Hill Collins, an African-American writer, theorizes that this is derived from a stereotype that those of black descent are promiscuous, and their buttocks are objectified by porn as a result. Today, pornographic films can be sold or rented on DVD, shown through Internet and special channels and pay-per-view on cable and satellite, and in adult theaters. In the West, masturbation in private or with a partner is generally considered a normal and healthy part of sexual enjoyment.