Is there a way to increase a creature's reach with all the creature's natural weapons so that the creature can make attacks of opportunity over a bigger area? I am aware of the feats Lunge, Monkey Lunge, and Combat Patrol and the longarm bracers, but those only seem to affect arm-based attacks, which isn't what I'm after.
My plan is to be a tank who can't just be ignored. I want to take fighter levels and the feat Stand Still to keep foes from moving through my threatened area and getting to my allies. I'm sticking to natural attacks for roleplaying reasons.
Also, the game is a mythic game so that material can be included. Third-party material is acceptable, too, but, please, label it as such.