Ah, the sights and sounds of summer.

The prim and (more or less) proper Blair Waldorf (Leighton Meester) takes in the Long Island scenery by going for a bike ride with a new guy, who we hear is named Marcus (and is played by Patrick Heusinger) ...

Who is Blair's new "friend" and what does that mean as far as Chuck Bass is concerned? Tell us your theories on this new Gossip Girl character ...

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