The Porn Stars study also found that participants reacted positively to a much wider range of figures than a control group, even rating emaciated figures higher. Top and dominant are widely recognized for those partner in the relationship or activity who are, respectively, the physically active or controlling participants. Today, religions vary in their views of masturbation; some view it as a spiritually detrimental practice, some see it as not spiritually detrimental, and others take a situational view. Its gain in prominence has been attributed to its depiction in the film Pecker, which was released in 1998. The most successful animated features produced in the United States primarily videos gays for adult audiences were directed by Ralph Bakshi, including Fritz the Cat, Heavy Traffic and Coonskin. The preference could be barefoot, high-heels, flip flops, and so on, depending on the fetishist. Crush pornography features objects being crushed by an actress or actor, who gay male sex generally plays an overtly dominant role. Such grounds and even the definition of pornography have differed in various historical, cultural, and national contexts. Works in this genre may explore philosophical, political or social issues. Reading or viewing pornography, sexual fantasy or other erotic stimuli may lead to a desire for sexual release such as by masturbation. Reality and voyeur pornography, animated videos, and legally prohibited acts also influence the classification of pornography. They may regard it as an enhancing element of their sex lives or as their primary form of sexual activity. Lesbianism in erotica deals with depictions in the visual arts of lesbianism, which is the expression of female-to-female sexuality. Breast fetishism is a paraphilic sexual interest focused on female breasts . Creampie pornography features ejaculation inside the vagina , mouth or rectum instead of the common cum shot, followed by the visible seeping or dripping of semen from the vagina, mouth or anus. Felching is momsex a sexual practice involving mobile teen porn the act of orally sucking semen out of the vagina or anus of one partner.