Lesbian pornography typically features a wider range of appearances and body types than is typical of mainstream pornography. Reading or viewing pornography, sexual fantasy or other erotic stimuli may lead to a desire for sexual release such as by masturbation. 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 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. When used as an alternative to penile-vaginal penetration, the goal may be to preserve virginity or to prevent pregnancy. Those with diaper-related paraphilias differ widely in their focus of attention. The current public acceptance of celebrities with sex tapes is speculated by Joe Levy, executive editor of Rolling Stone, to be due to the easy availability horny milfs of pornography, as well as couples more commonly making their own tapes due to the prevalence of video cameras. Certain websites have begun providing bondage videos and photographs featuring the kidnapping roleplay, which has been largely the hallmark of detective style bondage magazines. Breeding is sometimes followed by felching, which involves sucking the semen from the partner anus. The queening stool is also related to a smotherbox, which also allows the person under the seat to be locked in place, restrained by the neck as in a set of stocks. Such ejaculation can be done by mammary intercourse, or masturbation over the other person, or result from the withdrawal of the penis from a partner mouth as he is ejaculating following fellatio, irrumatio, or intercourse. The volume of semen that is ejaculated depends on several factors, including the male health, age, degree of sexual excitement, and the time since his last ejaculation. Often other friends and community members videos gays may witness the signing of such a document in a ceremony, and so parties hentai movies violating their agreement can result in loss of face, respect or status with their friends in the community.