| Loreguard |
Should be a yes, you can do Jaw/Jaw.
However, Jaw is finesse, claw is agile, finesse. That means if you choose to do Jaw, Jaw your additional attacks with the Jaw would be using the non-agile track for determining the MAP penalty. From that perspective, you could also choose to have the cat preform a Claw/Claw, with both claw attacks taking the agile track for determining MAP penalties, in case you for instance were riding the companion and had already attacked yourself. Since MAP, if I recall correctly applies to you and a ridden animal together as a single unit.
Pg 215 in the core book is where it shows your options as a cat would be where you look for the Cat. Pg446 is where it discusses the difference between an agile and non-agile attack with respect to MAP.