Once insertion is complete, the fingers are either clenched into a fist or kept straight. Voyeur pornography may also include shots of topless women gay bear porn on topless beaches who are unaware of the cameras but may legally be photographed due to the public setting. If dramatic skills are not involved, a performer in a porn film may also be called a model. Men may also rub or massage the glans, the rim of the glans, and the frenular delta. The glans itself may widen and lengthen as the stimulation continues, becoming slightly darker in colour, while the gliding action of the foreskin reduces friction. Pregnancy fetishism is a context where pregnancy is seen by individuals or cultures as an erotic phenomenon. The term applies to the depiction of the act rather than the act itself, and so does not include live exhibitions like sex shows and striptease. Other objects such as ball point pens and thermometers are sometimes used, although this practice can lead 3d hentai to injury and/or infection. Tentacle erotica can be consensual, but frequently contains elements of non-consensual sex. If one person is penetrated by two objects, it is generically called double penetration horny milfs . Bondage websites and bondage imagery in mainstream pornography As of 2003, specialist bondage magazines were mostly displaced by the availability of bondage material on the World Wide Web, and the presence of bondage imagery in mainstream pornographic magazines such as Nugget and Hustler Taboo magazine. Particular areas and processes of the body that change during pregnancy may also become the focus of psychological investment, but nudity or sexual activity is not always essential, and in some cases actual pregnancy is not necessary to invoke arousal. This is commonly called double vaginal penetration or double stuffing. Sadomasochism is practiced in isolation relatively rarely, though some masochists report biting, pinching, or even stun-gunning themselves as a prelude to, or as part of, masturbation. The most common male masturbation technique is simply to hold the penis with a loose fist and then to move the hand up and down the shaft.