If he is that smitten, he should make an appointment with his doctor to an question/answer session. Being more informed with help him to make a decision... perhaps he shouldn't worry so much about sex for now, but actually get the know the girl a lot better first????

Just my suggestion.

__________________
A blessed thing it is for any man or woman to have a friend, one human soul whom we can trust utterly, who knows the best and worst of us, and who loves us in spite of all our faults.