The object or situation of interest is called the fetish; the person who has a fetish for that object/situation is a fetishist. A celebrity may allow such a recording to surface willingly, as part of a publicity stunt. This fetish sometimes originates from childhood memories of needing, or of seeing another needing, to urinate. BDSM actions can often take place during a specific period of time agreed to by both parties, referred to as play, a scene or a session. A few extremely flexible males can reach and stimulate their penis with their tongue or lips, and so perform autofellatio. A somewhat controversial ejaculation control technique is to put pressure on the perineum, about halfway between the scrotum and the anus, just before ejaculating. There may be more than two participants; both group sex and gang banging can milf fuck be included. Older names for a pornographic film include stag film, and blue movie. A crush fetish is a fetish in which one is sexually aroused usually when someone crushes objects, food, and sometimes small animals with their body, usually under their foot, or when crushed oneself. Heterosexual bareback sex, as opposed to sex with condoms, not only poses an increased risk of STIs, but for pregnancy as well. Some do not use the diapers at all, for arousal, or bladder gay twinks and bowel movements. The definition clash also appears hentai porn with the English definition of yuri as any lesbian relationship, as opposed to its sexually explicit definition in Japan. Transsexual porn star Wendy Williams has stated that transsexual Porn is classified as Straight Specialty. 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. A variation on this is to place the fingers and thumb on the penis as if playing a flute, and then shuttle them back and forth. Actual spying may violate privacy and/or trespassing laws in many countries. Bisexual pornography is a genre of pornography which most typically depicts one woman and two men who all perform sex acts on each other.