Two solid lights moving in unison, one fluctuating in luminosity.

About 10:45pm, not sure the exactly as I was pacing holding a 2 year old who wouldn't sleep.
Viewing out north facing over sized windows I saw two lights roughly 4 degrees apart moving in unison from northwest to southeast at a slow rate roughly 5 degrees every 8 to 10 seconds. The lights were solid and did not blink or flicker. The lights were aligned north to south and the south light gained intensity for about 5 seconds at a time twice during my observation going from about the luminosity of Saturn to something more like Jupiter or even Venus then fading back out. The north light remained a consistent Saturn type luminosity. The south light did seem more amber when it was at its brightest. I could be wrong due to my color blindness, but it was definitely not white though this was harder to tell once it dimmed. It was harder to tell the color of the north light due to its brightness. I called my wife over to see it, and though she didn't witness the fluctuations of luminosity of the south light she did see the lights before they went out of view.