1. When you guys first started hanging out.
2. Now.
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3. When you two team up, you're unstoppable.
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4. When they bring up old embarrassing moments.
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Don't even go there. Remember what you did in fifth grade? Yeah so do I.
5. Helping them with boy problems.
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Because what's yours is theirs and vise versa..
6. Throwing each other surprise parties.
7. You accept their compliments.
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Even though they can get a little weird.