Sixty-nine is mutual oral sex at the same time, bodies aligned so each person’s mouth can reach the other. The number is a visual pun. The position is a coordination problem. Height mismatches and necks that do not bend that way make it comic more often than cinematic.

Attention splits. Some people love the symmetry. Others would rather take turns so they can actually concentrate. Pillows help. So does picking a top-and-bottom arrangement rather than a perfect side-by-side that looks neat and feels like work.

Breathing still matters. So does a way to tap out if the angle goes wrong. If it is not fun after two minutes, take turns. The position is optional folklore, not a graduation requirement.