It is certainly telling that secularists would hold up the behavior of irrational animals as a model for human behavior—especially when one considers that animals not only eat their own excrement, but even their own young. Yet disordered sexual behavior among humans is as degrading as that! Rational human behavior does not always FEEL satisfying or pleasurable. At times, it demands restraint, discipline and pain. But its rewards rise above the physical because the human person has a rational soul that is immortal.
Fr. Vincent Serpa, O.P.