Sexual compatibility is pertinent in any healthy relationship. You can be the perfect gentleman or hospitable woman—however, if there's nothing going on in the boudoir, that relationship is doomed. Now, there's duality involved in this scenario. Once the zenith of sexuality is obtained (factors of age, health, etc), there must be something else to take its place. The mental aspect must permeate the union. It's a rarity to find the combination of both.