This is right on the edge of being too serious for us here, but you may want to explore the source, girls.

Gender Expressions
Carl W. Bushong, Ph.D., LMFT

During my years of work and study with gender folk, I have consistently been surprised and amazed at both the depth and breath of change that has occurred during transition. And when I say transition, I am not just speaking of individuals described (either by oneself or by others) as “transsexuals,” but also “crossdressers,” “transvestites,” “transgendered people,” etc.

As I discussed in my article, What is Gender and Who is Transgendered, one’s Gender Identity is only one of our five semi-independent aspects of gender (Genetic, Physical, Brain Gender, Brain Sex and Gender Identity). One’s Gender Identity is established early in childhood and is our Self Map. Gender identity is one's subjective sense of one's own sex. Like pain, it is unambiguously felt but one is unable to prove or display it to others. One's subjective gender is just as real and more immalleable than one's physical gender but unfortunately not recognized in our culture. This internal map forms how we see ourselves as a sexual individual (our affiliation to a gender), just as Brain Sex is our Love Map—how we identify our love/sex partner.
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--back to the dirty stories please!