A animated porn celebrity may allow such a recording to surface willingly, as part of a publicity stunt. The sub-genres usually conform to certain conventions, and each may appeal to a particular audience. When all regions of the face are included, facial cum shots comprise approximately 62% of scenes where external ejaculation occurs. For uncircumcised males, stimulation of the penis in this way comes from the pumping of the foreskin, in which 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. It may involve sexual attraction to women who are pregnant or appear pregnant, attraction to lactation, or attraction to particular stages of pregnancy such as impregnation or childbirth. Softcore pornography generally contains nudity or partial nudity in sexually suggestive situations, but without explicit sexual activity, sexual penetration or extreme fetishism, while hardcore pornography may contain graphic sexual activity and visible penetration, including unsimulated sex scenes. Babysitter pornography features usually teenage girls being exploited and having taboo sex with older, male employers. Fantasies of group sex are extremely common among gay movies both men and women, and group sex is a subgenre in pornographic films. In September 2003 the BBC reported on the new dogging craze. Sub-genres of Japanese porn Among the various sub-genres of Japanese pornography are the following: Lolicon ロリコン: This genre involves prepubescent and adolescent girls between the aged of 6-12. Facial cum shots are currently regularly portrayed in pornographic hentai sex films hd mobile porn and videos, often as a way to close a scene. Some restrict a policy of panties/nipple tape for females and some allow full nudity with explicit sexual interaction allowed. But starting with The World Biggest Gangbang , starring Annabel Chong, the pornographic industry began producing momporn a series of gay bareback sex films ostensibly setting gangbang records for most consecutive sex acts by one person in a short period.