A lot of ISFP's, though aren't always huge talkers, like to be where the action is, where the party is, where the people are at, etc. There isn't necessarily the huge need to constantly chit chat, but definitely the desire to be there and to see what everyone is up to. I've gone through phases, myself, where me and my friends were practically family, going from the house to hang out, to go eat, then to a party, then crash together, to waking up and going to the pool together. And I'm not incessantly talking, but just enjoy being part of it. Seeing where it will take me. And enjoying the companionship.
However, get to know me one on one, and I can be quite the chatter box after that.
Also, having Se second, I can still be quite the story teller like any other ESFP. But I'd say I refrain from doing the story telling as often as the ESFP. Sometimes, though I have something I wanted to share, I'll find myself lacking the energy to do so, and therefore just hold back my thoughts or my story altogether.
But, Wolfy, I think you're an ISFP. You come off quite laid back. Plus you said you're an Enneagram 9. So ISFP makes more sense.