Leighton Meester and Adam Brody welcomed their first child last week, and not only are we happy for them, but we're also so excited for nostalgia purposes — it's Blair Waldorf and Seth Cohen! Thanks to their breakout roles on Gossip Girl and The O.C., Leighton and Adam have cemented themselves as a match made in teen-drama heaven. Sure, they aren't really their characters, but it's fun to look back at how their onscreen roles may have paved the way for this union. To celebrate the couple's big news, let's examine why Blair and Seth are perfect for each other, on screen and off.
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