Outside of the Feral Combat Training feat and a flurry of blows, no natural attack gets iteratives.<br/><br/><br/>For mixing manufactured and natural attacks, the rules can be found online here (http://www.d20pfsrd.com/bestiary/rules-for-monsters/universal-monster-rules#TOC-Natural-Attacks), or on page 302 of the 3rd print Bestiary.<br/><br/><div class="quoteheader"><div class="topslice_quote">Quote</div></div><blockquote class="bbc_standard_quote">Creatures with natural attacks and attacks made with weapons can use both as part of a full attack action (although often a creature must forgo one natural attack for each weapon clutched in that limb, be it a claw, tentacle, or slam). Such creatures attack with their weapons normally but treat all of their available natural attacks as secondary attacks during that attack, regardless of the attack’s original type.</blockquote><div class="quotefooter"><div class="botslice_quote"></div></div><br/>So Princess Harriet could use her hammer in two hands and get her iterative attack as normal, plus make a secondary tail attack. She could also use her hammer in one hand, getting less strength damage on each swing, and make a secondary tail and claw attack. Without the hammer, she could make two primary claw attacks (with the special rend) and a secondary tail attack. All of these would be full attack actions.<br/><br/>Normally a secondary attack is at a -5 attack penalty to that attack alone, and deals x1/2 Strength and Power Attack damage. With the multi-attack feat you only take a -2 penalty on the attack, which uses the highest BAB to get its to-hit.