I got my camera too late to get a good photo, but in time to get a crummy blurry one:
Julian and Katrina playing "horsey," in which she "rides" his back. He suggested they switch, and she said "OK!" At which point Dave and I in unison said "NOOO!"
Katrina's also been "riding" the back of couches too, roping Gabriel into the fun too.
Little girls and horses...I know the obsession all too well. So does my checkbook. Oh dear.