The surfacing of sex tapes has become so common that some are leaked as a marketing tool to advance or establish a media career. Squirt pornography involves women ejaculating. Real jail or prison or police station shots or videos may violate laws in some countries. It may be regarded as taboo or unnatural, and is a criminal offense in some countries, punishable by corporal or capital punishment; by contrast, people also regard anal sex as a natural and valid form of sexual activity that may be as equally fulfilling as any other desired sexual expression. When all regions of the face are included, facial cum shots comprise approximately 62% of scenes where external ejaculation occurs. The effect is to give the viewer hentai porn the sense that they are experiencing the sex acts that they are watching, as opposed to simply watching others as a gay fuck voyeur. 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. It may also involve touching, rubbing, or pinching the nipples or other erogenous zones while masturbating. Scenes of multiple penetration are common in pornography. Shemale is a term primarily used in sex work to describe a trans woman with male genitalia combined with female secondary sex characteristics, usually including augmented female breasts, from breast augmentation and/or use of hormones. Practitioners have described going to public places such as a mall or a park. Can also include auto-fellatio, or performing oral sex nude milfs on oneself. Cum-shot pornography features a collection of male ejaculation scenes. Masturbation has been depicted in art since prehistoric times and is mentioned and discussed in very early writings. Along with the penis, the scrotum is sensitive and considered to be an erogenous zone. It can be combined with fellatio and the woman may move her breasts up and down on the penis for an additional stimulation, usually before the man reaches orgasm.