Pin

Pin
You are skilled at immobilizing grappled foes.
Prerequsites: Base Attack Bonus +1
Benefit: If you succeed on a grappling attack and your opponent fails the opposed grapple check, your opponent is automatically pinned until the start of your next turn. A pinned creature can’t move or take any actions while pinned, and loses its Dexterity bonus (if any) to Reflex Defense.
Normal:
Special: You cannot use the Pin and Trip feats during the same round. You can use the Pin and Crush feats in the same round, however.