Spanking can be administered in a number of spanking positions. The cover can have hinges or be a separate part. The industry generally refers to such films as adult films, which is part of adult entertainment. The actual height of the giantess within the fantasy may vary depending on the individual. 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. 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. Other fetish Bareback pornography features performers who are not milf xxx wearing condoms. 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. Macrophilia is a fascination with or a sexual fantasy involving giants, more commonly expressed as giantesses . See also Gay-for-pay. As women, they face concerns separate from men. Typically features adult, masculine men with varying degrees of muscle, body fat, and body hair, akin to beefcakes, or bears. Internal ejaculation shots are a comparatively recent development in pornography; they are not found in early pornographic films. Shotacon : Similar to Lolicon, this genre involves prepubescent or under-aged boys between the ages 6–12. Masturbation is the self-sexual gay bear porn stimulation of the genitals for sexual arousal or other sexual pleasure, usually to the point of orgasm. HIV is among the infections that require such direct contact and is therefore very unlikely to be transmitted via mammary intercourse. Works gay hentai in this genre may be considered adult for any number of reasons. Lesbian pornography typically features a wider range of appearances and body types than is typical of mainstream pornography. A 2009 study found that heterosexual male fat admirers preferred females that were clinically overweight and rated both overweight and obese women more positively than slighter individuals.