However, the tradition of bondage magazines continues in the form of art books of bondage photographs, published by mainstream publishers such as Taschen. A sexual fetish may be regarded as an enhancing element to a romantic/sexual relationship achieved in ordinary ways or as a mental disorder/disorder of sexual preference if it causes significant psychosocial distress for the lesbian milfs person or has detrimental effects on important areas of their life. In general, softcore pornography is pornography that does not depict explicit sexual activity, sexual penetration or extreme fetishism. It may be used as foreplay, or as an alternative to sexual penetration. Common phrases used to refer to these individuals are chicks with dicks, trannies, or shemales, although these are generally considered pejorative slurs among transwomen. Pornography is generally classified as either softcore or hardcore pornography. Spanking or whipping pornography involves spanking or whipping, generally of the buttocks, with the hand or with other objects such as belts, switches, paddles, gay hentai brushes, or whips. It may be regarded as taboo or unnatural, and is a criminal offense in some countries, punishable by corporal or capital punishment; by contrast, people also regard anal sex as a natural and valid form of sexual activity that may be as equally fulfilling as any other desired sexual expression. It may involve sexual attraction to women who are pregnant or appear pregnant, attraction to lactation, or attraction to particular stages of pregnancy such as impregnation or childbirth. Pornographic films are generally classified into sub-genres which describe the sexual fantasy which the film and actors attempt to create. The effect is to give the viewer the sense that they are experiencing hot gay sex the sex acts that they are watching, as opposed to simply watching others as a voyeur. Strictly speaking, bondage means binding the partner by tying their appendages together; for example, by the use of handcuffs or by lashing their arms to an object.