Felching anime hentai is a sexual practice involving gay cock the act of orally sucking semen out of the vagina or anus of one partner. Behind the Green Door was one of the first pornographic films to feature sex between a white actress with a black actor . Contrary to the other two types, B/D does not define the Tops and Bottoms itself, and is used to describe the general activities with either partner being the receiver and the giver. Other fetish Bareback pornography features performers who are not wearing condoms. These naked milf are often fake. Some pornographic films use an artificial semen substitute to simulate or enhance creampie shots. They may regard it as an enhancing element of their sex lives or as their primary form of sexual activity. Shotacon : Similar to Lolicon, this genre involves prepubescent or under-aged boys between the ages 6–12. Crush pornography features objects being crushed by an actress or actor, who generally plays an overtly dominant role. 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. Other objects such as ball point pens and thermometers are sometimes used, although this practice can lead to injury and/or infection. In the West, masturbation in private or with a partner is generally considered a normal and healthy part of sexual enjoyment. A study of the condom usage habits of New Zealand sex workers said that they offered various safe sex alternatives to vaginal sex to clients who refused to wear a condom. Urolagnia is a form of salirophilia in which sexual excitement is associated with the sight or thought of urine or urination. The use of the word creampie to describe such scenes originated in U. Lying face down one may use the hands, one may straddle a pillow, the corner or edge of the bed, a partner leg or some scrunched-up clothing and hump the vulva and clitoris against it.