Vestigial Restraint
Transfer a grappled creature at least one size smaller to your vestigial arms as a free action, freeing your primary hands for other actions. Transferring imposes a –2 circumstance...
--- Countless generations of specialization have stripped your two pairs of vestigial arms of much of their strength, but you've trained them to gain enough strength to be useful in combat. Though they aren't strong or agile enough to grab an opponent, you can use them to maintain a grip you already have. When you successfully grapple a creature that's at least one size smaller than you, you can transfer the foe to your vestigial arms as a free action, freeing your primary hands. You have a –2 circumstance penalty to the Escape DC for your grapple against creatures you have grabbed in your vestigial arms.