I have a player that currently has Aspect of the Beast and has chosen Claws of the Beast. This grants him a pair of claws. He would also like to take Eldritch Heritage and take the Abyssal Bloodline for fluff reasons that as the DM, I completely agree with. This would hypothetically grant him a second set of claws. He's also going into Dragon Disciple for fluff reasons I also agree with, and at first level of DD, would gain a set of claws due to the Blood of Dragons special.
Does this work? Can he gain 6 claw attacks? I'm aware of Natural Weapons rules meaning only one set would be primary and the rest would be at -5 and 1/2 Strength, so I'm not concerned with that. I just need to know if he can actually get more claws. I have personally got nothing against it, but I (and he) want to be certain it's allowed according to rules.