Non fault bump, what to do next

[sideways dan]

Just after some advice really as never been in this situation before. I was driving my partners car when someone pulled out of a t junction colliding with the nsf of our vehicle. Third party admitted responsibility immediately and said she would contact her insurer first thing this morning (am yet to hear from anyone currently). Only a few scratches to our car so would have preferred to settle between ourselves but she wants to use her insurance. The question I have is this. I am a named driver on my partners insurance but also covered to drive her car on my insurance so which of our insurers do we inform of the bump. I would prefer just to inform my insurer only as it was me driving and so it wont affect my partners insurance but not sure if we have to inform both. Thanks in advance for any help, Dan.

[sideways dan]

Thank you for replying. That's what I thought would be the case, I guess we both have increased premiums to look forward to!!!