Orbital Bone

When the male mounts the female during intercourse and, after insertion, revolves around his own axis. A male in orbit is not beyond the reach of Earth's gravity. In fact, gravity is what holds him in orbit.

The force of gravity in keeping the male in circular motion is an example of centripetal force. Since it acts always perpendicular to the motion, gravity does not do work on the Orbiting Bone if it is in a circular pleasurable orbit.