I'm playing through a campaign at the moment (Curse of the Crimson Throne if that helps) and have rolled a Half-Orc Abyssal Bloodrager. I'm still fairly new to Pathfinder and this is the first character I'm taking past level 1.

He's got good damage so far, though his AC is lower than I would like. I've never used natural weapons build before though and I'm worried about him keeping up with the encounters at higher levels, especially since in our party of three he is the main source of damage (the other two are a Rogue and a Cleric)

So I'm looking for suggestions of good feats for a natural weapon build, or just good feats for this class in general, and ways to buff his defenses later on.

I also have a few specific questions I would like answering:

• How do multiple natural attacks work with bonus attacks from BAB. If I have two claws on a full attack now, does that become three claws at level 6, i.e. 2 claws 1 total from BAB, or four claws, i.e. 2 clas 1 from BAB per claw?

• Does the enlarge person spell stack with the demonic bulk bloodline ability, or can I only have one active at a time?

• How do natural weapons interact with the two-weapon fighting feat line? I don't have any penalties for fighting with two claws and I already get full strength bonus on both, but if I take improved two-handed fighting do I get an additional attack?

Note: I likely won't take two-weapon fighting as the dex requirement is too high, but I'd still like to know for curiosities sake.