pf2e.fyi
From Pathfinder Howl of the Wild, which isn't enabled.

Fierce Grasp

FEAT 5
AWAKENED-ANIMAL
Activity 1 action
Prerequisites climbing animal heritage
Requirements You have an opponent Grabbed or Restrained.

Once you get your hands on someone, it's hard for them to get away. Your opponent takes a –2 circumstance penalty to their next attempt to Escape from being grabbed or restrained by you, and you gain a +1 circumstance bonus to your AC against any attacks they make against you while you have them grabbed.

Pathfinder Howl of the WildORC