It's almost sickening, isn't it?!  We spotted couple du jour, Blake and Penn going for a stroll in Soho today.  The Gossip Girl and boy walked hand in hand while they took a break from shooting, even stopping to take a pic with a fan.  They are so the new Seth and Summer (aka former real life OC lovers Adam Brody and Rachel Bilson), let's just hope that their relationship and the show for that matter, has bit more of a life span!