No matter what corruption he’s taught about the virtue of selflessness, sex is the most profoundly selfish of all acts, an act which he cannot perform for any motive but his own enjoyment—just try to think of performing it in a spirit of selfless charity?-an act which is not possible in self-abasement, only in self-exaltation, only in the confidence of being desired and being worthy of desire. It is an act that forces him to stand naked in spirit, as well as in body, and to accept his real ego as his standard of value.
~ Ayn Rand