This is weird I know.... but in a nutshell my sister and I have never gotten on. We didn't speak for a long time after I gave birth to my daughter because when I told my sister her name she went batshit.. the day after I gave birth, which wasn't straight forward by any means.
The reason for this was apparently I 'stole' her baby name. She wasn't ttc at the time, we didn't EVER discuss names because I strictly told everyone I wasn't talking about it. I wanted zero opinions on names.
You would have thought after a late miscarriage previously and difficulty ttc she would have just been happy for me! 
Fast forward to now, she's ttc and she knows I would like another one anytime in the near future. She wants to reserve baby names so that I don't 'steal' anymore but I think this is batshit and I'm not going to be told I can't have any baby names from a list as long as my bloody arm?!?
AIBU to tell her that this won't be happening?
Thanks in advance!