You are a quick hand at grappling.

Prerequisite: Dex 13, Greater Grapple, Unarmed Combatant, base attack bonus +9 or monk level 9th.

Benefit: Whenever you use Greater Grapple to successfully maintain a grapple as a move action, you can then spend a swift action to make a grapple combat maneuver check at a –5 penalty.