Transvestitism: Transvestitism, or transvestic fetishism, refers to the practice by heterosexual males of dressing in female clothes to produce or enhance sexual arousal. The sexual arousal usually does not involve a real partner, but includes the fantasy that the individual is the female partner, as well. Some men wear only one special piece of female clothing, such as underwear, while others fully dress as female, including hair style and make-up. Cross-dressing itself is not a problem, unless it is necessary for the individual to become sexually aroused or experience sexual climax.