Why when my penis returns flaccid, if the skin has been fully retracted with the erection, the glans is often still uncovered, at least until I cover it (manually) again with the foreskin ? Once the erection is vanished, the foreskin should not cover the glans automatically, returning to its original position by itself (also through the traction exerted by the frenulum), even if gradually (ie a little at a time) ?