[After reading the words again, Aerith sighed and leaned forward to drop her head against the centre of Sephiroth's chest as if she could just go and hide away from it there.]

It means, I think, that in order to leave here we don't need to kiss or confess our love, we need to each tell an embarrassing story.

[Did Sephiroth even get embarrassed? Would they be trapped there forever??]