[Samantha Rogers]

Pansy, here is how a member from another board described the theory (paraphrased)


The brain is hard-wired to interpret dressing as actual contact with a female.Cross-dressing causes your brain to release a host of neurotransmitters which produce the sensations of well-being, pleasure, gratification and bonding associated with "contact with a female". These important neurotransmitters associated with sex include dopamine, serotonin, and oxytocin.
Sensations of euphoria are associated with dopamine. Dopamine is very interesting and important in sex. It is the driver an it gives us compulsive behavior, the expectation of gratification, and pleasure.


Makes a lot of sense to me...