Greater economic and social freedom allowed them gradually to be able to determine how they could form relationships and families. Hugo Ohira, director of marketing for Silvercash, rhetorically asks Who does not like spewing their load on a pretty young face? Incest pornography can feature actual relatives, but the main type of this pornography simply uses actors of similar looks to suggest family relationship. A common way that these are depicted in a single scene is with one woman and two men performing together. Crying pornography that features participating actors crying. Squirt pornography involves women ejaculating. Individuals who can change between top/dominant and bottom/submissive roles—whether from relationship to relationship or within a given relationship—are known as switches, though the term switch in this context is occasionally seen as derogatory and is rejected by many who might simplistically fit the definition. The current record is held by Lisa Sparks who had sex with 919 men on October 16, 2004 in Warsaw, Poland as part of the Third Annual World Gangbang Championship and Eroticon 2004. Heterosexual bareback sex, as opposed to sex with condoms, not only poses an increased risk of STIs, but for pregnancy as well. Teacher and Student or Boss and Secretary pornography involves sexualized situations which take place between an authority figure, such as a teacher or boss, and an underling, such as a student or secretary, often fake. Group sex is sexual hentai videos behavior momporn involving more than two participants. Others may also use vibrators and other sexual devices more commonly associated with female masturbation. Lesbian pornography made for women is usually made by women, and usually features women who identify as lesbian or bisexual. Bukkake, Gokkun, Omorashi, and tentacle erotica are few uniquely Japanese genres known to western viewers. Watersports pornography features sexual activities involving urine, such as golden showers. Arousal may be triggered by seeing the body movements or facial expressions hot gay sex of that person.