Content featuring male bisexuality has been a growing trend since the advent of internet pornography. Target audience are teenage / young adult women. Types of anal sex can also be a part of lesbian sexual practices. Sexual orientation Pornography features an increasing variety of combinations of actors by their sexual orientation such as lesbian, gay, bisexual, and transsexuals in addition to traditional heterosexual roles. Bottom and submissive are widely recognized terms for those partner in the relationship or activity who are, respectively, the physically receptive or controlled participants. Typically featured are hitting, choking, name-calling and hair-pulling. Comic books often featured characters being tied up and tying others up, particularly in damsel in distress plots. The most common type of erotic spanking is administered on the bare buttocks, but can also be combined with bondage, in order to heighten sexual arousal and feelings of helplessness. 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. Women who perform in lesbian pornography often do not consider themselves lesbian or bisexual. Specific sex acts Anal Anal pornography features anal penetration with a penis, dildo, other objects, or some combination of them. Many fantasies include the macrophile shrinking before a normal sized woman or keeping his or her normal height while the partner grows in size. Rainbow parties were covered on The Oprah Winfrey Show in 2003, and became the subject of a juvenile novel called Rainbow Party. Although 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. Bukkake pornography involves a performer, usually female, onto whom several men or women ejaculate, usually on the anime hentai face. A sex party is a gathering at which sexual activity gay cock takes place.