We LOVE our Born Free bottles! We have dropped them a couple and they haven't broken at all. We have a sippy cup, but of course haven't opened it yet.

Are you using the standard or wide dr. brown's bottles? Born free is wide, so if she is using the stardard it might take an adjustment or she might do fine.

ETA:
The bottle also convert to sippy cups. You can just get the different attachments, so I would think that adam and megan can share the same bottles.

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