The most fully human person who has ever lived, or ever will live, is Jesus Christ, and He never once had sexual intercourse.
This can be powerfully liberating to single people who may think at times, “This one thing I will never have, sexual relations, and in not having it I will not be all that I was meant to be.” To this thought Jesus, the virgin, says, “A student is not above his teacher, but everyone who is fully trained will be like his teacher” (Luke 6:40). We will always have mountains of truly human Christ-likeness yet to climb, but sexual intercourse is not one of them. For He never knew it. And He is infinitely whole.
– John Piper, Recovering Biblical Manhood and Womanhood, Foreword xix.