In D/S, the Dominant is the Top and the submissive is the Bottom. Bukkake pornography usually depicts numerous men having sex with one woman, with multiple, usually 10 or more, men ejaculating on the female face. This is also the case in many relationships not considering themselves as sadomasochistic; it is considered to be a part of BDSM if it is practiced purposefully. Others get aroused by telling some people about when they lost control and wet themselves. The interaction between tops and bottoms—where physical or mental control of the bottom is surrendered to the top—is sometimes known as power exchange, whether in the context of an encounter or a relationship. Yuri is the lesbian equivalent. 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. A queening stool is a low seat which fits over the submissive face and contains an opening to allow oral-genital and/or oral-anal stimulation of the domme while seated. Although lesbian hentai interracial pornography theoretically can apply to depictions of sexual activity between performers of any different racial groups, the term is most commonly used for heterosexual sex acts between black and white performers. Also momsex see POV. Regardless of its origin, BDSM is used as a catch-all phrase to include a wide range of activities, forms of interpersonal relationships, and distinct subcultures. The films were financially successful, winning AVN Awards for the best selling pornographic films of their year; however the events were effectively un-officiated and the record breaking claims often misleading. A threesome is a common element of sexual fantasy. Cum swapping pornography involves gay cock performers trading semen between their mouths. Scenes of multiple penetration are common in pornography. There are many other variations on male masturbation techniques. Pleasure for the giver during anilingus is usually based more on the principle of the act.