Their secrets are your secrets and will be forever.
You do more reminiscing than you do "catching up".
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The majority of your conversations start with "Remember when..." and it's never long before one of you brings up an embarrassing childhood memory.
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And you have a whole host of embarrassing stories to bring up at your leisure.
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You love finding old pictures of each other and laughing over them.
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And you have photographic evidence from every stage of each other's lives, including the "awkward teen" phase.
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