In a face-to-face seating position (woman straddling, face-to-face) combined with a slow rhythm (rubbing back and forth, circular motions, gentle rocking, and light up-and-down movements), the woman usually experiences easier build-up to orgasm, while the man typically lasts longer. This isn't absolute (it varies from person to person). How can the man achieve a "tantric union" state without premature ejaculation using "distance +..."?