Two fast moving UFO's moving west to east 25 miles east of SeattleSeptember 11, 2012 Snoqualmie, Washington, 25 miles east of Seattle 10:50 PM PDT Dark night with no clouds evident. Excellent visbility. House located in the Snoqualmie Ridge area at 953 feet AGL. Reasonably clear view of night sky with some obstruction from house and green belt located to the East of my home. Was on my patio watching the night sky. Observed two jetliners on an approach to the Seattle TCA flying from east to west with navigation lights evident and able to clearly hear them pass over the house. At 10:50 I observed two objects moving in tandem at a high rate of speed headed west to east in a slightly descending trajectory. Unable to tell how far away they were but it appeared they were at an altitude much higher than the traffic pattern for the commercial jets. They were illuminated but it appeared to be reflected light as there were no lights or beacons on the objects. I at first thought they were two meteorites that had broken apart and were going to burn up but as I observed them, they appeared to deviate from a straight course! and turned about twenty degrees to the south in tandem. I lost sight of them as they went behind the green belt behind my home. I am a private pilot and a pretty good judge of military hardware. I did not see anything that would indicate that these were conventional military craft and I did not hear any sound as they passed.