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. As in B/D, the declaration of the Top/Bottom may be required, though sadomasochists may also play without any Power Exchange at all, with both partners equally in control of the play. It may also involve touching, rubbing, or pinching the nipples or other erogenous zones while masturbating. These agreements are binding in the sense that the parties have the expectation that the negotiated rules will be followed. Transsexual porn star lesbian hentai Wendy Williams has stated that transsexual porn is classified as Straight Specialty. Emetophilia pornography momporn involving vomiting and gagging. 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. Clothed female, naked male is a genre of erotica featuring one or more nude men and one or more clothed women. Male masturbation may differ between males who have been circumcised and those who have not. First found in softcore movies and erotic thrillers, depictions of lesbianism entered mainstream cinema in the 1980s. By Japanese law, the genitals of actors and actresses must be censored and up the mid-1990 so was the depiction of pubic hair. Cum-shot pornography features a collection of male ejaculation scenes. Women porn is often produced gay cock by women and aimed specifically at the female market - rejecting the view that men are turned on by porn but women only by a box of chocolates. The name of the practice, when it is done in a repeated in-and-out motion, is derived from its passing resemblance to the dipping of a tea bag into a cup of hot water as a method of brewing tea. The speed of the hand motion will vary from person to person, although it is not uncommon for the speed to increase as ejaculation nears and for it to decrease during the ejaculation itself.