The practical definition of "narcissexual" is not "autosexual" as many misperceive, but is "someone who is erotically attracted to someone else based on either the two people seeming very much alike to the first person or the second person seeming to the first person like an idealized version of the first person." In either case, the attraction comes out of emotionally relating to another part of oneself instead of relating to a separate entity altogether. Very few narcissists are actually narcissexual as this would require having the rare form of idealized narcissism in which all people are seen as part of the same self. It's very important here not to confuse healthy narcissism with unhealthy narcissism. Narcissexuality only applies to healthy narcissism. In unhealthy narcissism the "other" is objectified and thus not idealized at all as a part of self. In narcissexuality the sexual attraction would only develop with those who are seen to be reflecting the original self particularly well. It's very easy to confuse masturbation, homosexuality and autosexuality with narcissexuality but there are clear distinctions. For a narcissexual, physical appearance is still the initial attractor (the "other" looking like the self) but equally relatable intellect and emotionality are also necessary for profound narcissexual attraction. Narcissexuals tend to work hard to become bodybuilders themselves and are emotionally excited by coming across what they see as idealized versions of themselves, i.e., more physically developed versions of themselves. Again, this attraction through idealization tends to wane if the two people get to meet in person and the first sees that the intellect and emotionality of the "other" is not particularly reflective of the first self in any exceptional way at all, much less in an idealizable way. For this reason, narcissexuals can be sexually titillated by huge bodybuilders from a distance but that tends to fall off dramatically if they meet in person. To develop an actually profound sexual relationship would most likely first require intellectual/emotional mutual identity and then the two people working together to look more like each other while also developing their bodies to extreme proportions together. Narcissexuals see themselves in terms of potential, so they idealize everything about themselves and about reality. This does not make them unhealthy but it does make them extremely idealistic and philosophical. The more two narcissexuals look alike, the stronger the attraction will become if there is also strong attraction on the intellectual and emotional levels. All narcissexuals would love to be identical twins or identical triplets, etc. because all these connections and transformations would then be so much easier to make. Some have speculated that all human clones of the same "parent" brought up together would be narcissexuals but I doubt that generalization myself.
Narcissexuality requires a rare genetic predisposition and cloning alone is not enough to set that up. As you might suspect, narcissexuals have tended to not to ever find real compatibility, both because the phenomenon of narcissexuality is basically unknown and also because narcissexuality has remained relatively quite rare. Also, getting two narcissexuals together does not necessarily lead to sexual attraction by either because they still have to seem enough like each other for the narcissexuality to be evoked. Even in a convention of a thousand narcissexuals where everyone met everyone else, it could be that none would develop sexual attraction for any of the others because profound narcissexual attraction requires rather extreme compatibility demands. Of course, as with heterosexuals, homosexuals, bisexuals, transsexuals, etc., narcissexuals also have the right and need to find others of their kind. Even autosexuals and asexuals have needs to find others who understand and with whom to develop profound intimacy. As I hope you know, profound intimacy does not have to involve anything physical at all. For further discussion of actual narcissexuality and the relatively new study of healthy narcissism, write to liftr450@yahoo.com.