Big Beautiful Woman is a euphemism for an overweight woman and is frequently used in the context of fat fetishism. Others may also use vibrators and other sexual devices more commonly associated with female masturbation. 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. When all regions of the face are included, facial cum shots comprise approximately 62% of scenes where external ejaculation occurs. Pornography is generally classified as either softcore or hardcore pornography. Omorashi: The act of holding one own urine until the need to urinate is urgent, making another hold in their urine, or watching another person with an urgent need to urinate. Depictions of male and female masturbation are common in pornography, including gay pornography. The concept of lesbian, to differentiate women with a shared sexual orientation, is a 20th-century construct. If ejaculation is onto the other person face it can be called a facial. Men may find stimulation of the anus, rectum, and adjacent organs enjoyable. Emetophilia pornography involving vomiting and gagging. The smotherbox is placed on a stable surface. The anus has a relatively high concentration of nerve endings and can be an erogenous zone, and the receiver may receive pleasure from external anal stimulation. Crying gay sex pornography that features participating actors crying. Comic books often featured characters being tied up and tying others up, particularly in damsel in distress plots. Amateur porn has been called one of the most profitable and long-lasting genres of pornography. In more vigorous forms of fisting, such as punching or punchfisting, a fully clenched fist may be inserted and withdrawn slowly. Ass to mouth pornography shows the transfer of a performer penis from a second performer anus to that same second performer mouth in a single shot. Creampie scenes depart from heterosexual pornographic convention in favor of a depiction that more closely mimics sexual intercourse as performed in ordinary life; they have been called the counterimage of facials.