This genre also features male-on-male fellatio through a small hole made in a bathroom divider. Whether or not licking and fondling is considered tea bagging was once debated on the Howard Stern Show. Works in this genre may explore philosophical, political or social issues. As a form of non-penetrative sex, it can be done for its own enjoyment or as foreplay. However, various groups within society considered such depictions immoral, gay sex labelling them pornographic, and attempting to have them suppressed under obscenity laws, with varying degrees of success. Threesome or 3some pornography features one man and two women . Swinging can take place in various contexts, ranging from a spontaneous sexual activity at an informal social gathering of friends to a regular social gathering in a sex club or residence. Some prefer a particular type of clothing to urinate. 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. The two sets of people involved often meet either randomly or arrange to meet up beforehand over the Internet. Although there may be no connection between coprophilia and sadomasochism , the limited data on the former comes from studies of the latter. A smotherbox gives a more dramatic experience . Gay pornography is the representation of sexual activity between males. The study also found that participants reacted positively to a much wider range of figures than a control group, even rating emaciated figures higher. They may be noted for using risqué themes, graphic violence, sexuality or black comedy in a manner that is unsuitable for younger audiences. In a few relationships, it leads as far as total submission of one partner in the truest sense of the phrase total power exchange . Lesbian pornography typically features a wider range of appearances and body types than is typical of mainstream pornography. In the Diagnostic and Statistical Manual of Mental Disorders , published by the American Psychiatric Association, it is classified under 302.89 – Paraphilia NOS and has no diagnostic criteria other than a general statement about paraphilias that says the diagnosis is made if the behavior, sexual urges, or fantasies cause clinically significant distress or impairment in social, occupational, or other important areas of functioning.