Types of anal sex can also be a part of lesbian sexual practices. Portrayals of lesbians in the media suggest that society at large has been simultaneously intrigued and threatened by women who challenge feminine gender roles, and fascinated and appalled with women who are romantically involved with other women. This genre also features male-on-male fellatio through a small hole made in a bathroom divider. The term bondage describes the practice of Physical restraining. The use of the word creampie to describe such scenes originated in U. Solo pornography recognized with AVN Awards include the All Alone series and All Natural: Glamour Solos. If dramatic skills are not involved, a performer in a porn film may also be called a model. In these research publications, it is suggested that real female ejaculation is the release of a very scanty, thick, and whitish fluid from the female prostate, while the squirting or big tit milf gushing shown frequently in pornography is a different phenomenon, the expulsion of clear and abundant fluid, which has been shown to be a diluted fluid from the urinary bladder. Coprophilia , also called scatophilia or scat , is the paraphilia involving sexual arousal and pleasure from feces. Yaoi is anime or manga that features gay males . The warm sensation felt when urine trickles on the body seems to give very relaxing and pleasurable gay boy porn feelings to the person. In humans, females generally have more round and voluptuous buttocks, caused by estrogen that encourages the body to store fat in the buttocks, hips, and thighs. Pro-am pornography is sub-genre of amateur pornography that refers to professionally made porn that features amateur actors/actresses, often appearing for the first time in a pornographic film. For example, in Australia it is rated Refused Classification . The full-weight body-pressure, moisture, sex odors and darkness can be perceived as powerful sexual attractions or compulsions. Some may keep their hand stationary while pumping into hentai movies it with pelvic thrusts in order to simulate the motions of sexual intercourse.