Is it permissible for a doctor to request to see a couple during intercourse in order to diagnose premature ejaculation?

This act is a grave abomination that is not condoned by any religious law or sound taste. It is an open display of rutting and copulation, like that of donkeys and beasts. If the husband suffers from what was mentioned, he has a permissible solution: anoint the penis with a substance that reduces sensation, or occupy his mind by thinking about something until ejaculation is delayed.