Female dominance refers to BDSM relationships and BDSM scenes in which the dominant partner is female. As of 2013, little analysis of this paraphilia has been reported in medical literature. Incest pornography can feature actual relatives, but the main type of this pornography gay hentai simply uses actors of similar looks to suggest family relationship. Lesbianism has been a theme in erotic art since at least the time of ancient Rome, and many regard depictions of lesbianism to be erotic. Bondage/BDSM Bondage pornography features performers tied up or constrained in various ways. A male voyeur is commonly labeled Peeping Tom, a term which originates from the Lady Godiva legend. If this is done using penises and/or strap-on dildos, this is sometimes called the sandwich or BigMac. Some women who engage in same-sex sexual activity may reject not only identifying as lesbians but as bisexual as well, while other women self-identification as lesbian may not align with their sexual orientation or sexual behavior; sexual identity is not necessarily the same as one sexual orientation or sexual behavior, due to various reasons, such as the fear of identifying their sexual orientation in a homophobic setting. This technique may include the use of a simulacrum, or artificial vagina. Bara male homosexual hentai designed to appeal to men. Real enema shots or videos of true medical situations may violate privacy laws in some countries. BDSM actions can often take place during a specific period of time agreed to by both parties, referred to as play, a scene or a session. Actual milf fuck spying may violate privacy and/or trespassing laws in many countries. A somewhat controversial ejaculation control technique is to put pressure on the perineum, about halfway between the scrotum and the anus, just before ejaculating. This stop and go build-up, known as edging, can achieve even stronger orgasms. The reverse of this, in which nude women interact with clothed men, is called Clothed male, naked female . A variation on this is to place the fingers and thumb gay sex video on the penis as if playing a flute, and then shuttle them back and forth.