เมื่อวันที่ 25-26 ตุลาคม 2556 Mammary intercourse is known as titty-fucking, titfuck, or a titjob in the United States, as well as tit wank or French fuck in the United Kingdom - the latter term dating back to the 1930s; while a more jocular equivalent is a trip down mammary lane. It has also been recommended as a form of foreplay or safer sex. Multiple men and women Bisexual pornography features one woman and two men who all perform sex acts on each other. The reverse of this, in which nude women interact with clothed men, is called Clothed male, naked female . Reality pornography is professionally made porn which seeks to emulate the style of amateur pornography. Compensating elements of the total dominance and submission are care and devotion complementing one another, thus facilitating stable relationships. Interactive pornography, available in CD-ROM and DVD format, allows the viewer to select the particular acts performed at any one time, sometimes with the camera providing a first person view. When used as an alternative to penile-vaginal penetration, the goal may be to preserve virginity or to prevent celeb sex tape pregnancy. 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. This may help them develop their orgasm, increase its pleasure, and may inspire them to masturbate on a more frequent basis. The existence of such content in commercially available pornography is widely considered an urban legend. Sub-genres can also be classified into the characteristics of the performers or the type of sexual activity on which it concentrates, and not necessarily on the market to which each sub-genre appeals. Films with risque content commenced to be produced soon after the invention of the motion picture in the 1880s. Barebacking usually refers to a conscious and deliberate choice to forgo condoms. Commenting on why there are not as many female macrophiles, psychologist Helen Friedman theorized that because women in most societies already view men as dominant and powerful, there no need for them to fantasize about it. บริษัท ควอลลีเทค จำกัด (มหาชน) จัดอบรมหลักสูตร "การสร้างทีมอย่างมี ประสิทธิภาพ (Team Bulding)" ณ อุทยานการเรียนรู้ วิทยาลัยนวัตกรรม ม.ธรรมศาสตร์ศูนย์พัทยา