Instinctive Hold

Directed by the sensitive nerves entwined within each of your limbs, your tentacles reflexively cling onto whatever you're grappling, even if your attention is directed elsewhere. Attempt a DC 16 flat check. If you succeed, you can extend the duration of the grappled creature's grabbed or restrained condition until the end of your next turn. If you have any special abilities or free actions that would normally be triggered when you Grapple a creature, you can't use them as part of this action.