Two Cats at the Door

I went outside to take a snap of our flag hanging off the deck today-- Flag Day. But seeing Dori Pickles and Persey at the door, I had to blip them together.
I am training Dori to be a house only cat. She sees Persey going in and out and wonders about it. But she has never been invited outdoors or through the cat flap either, so she remains curious, but inside.
Her latest frantic interest is chasing flies that come inside. Live toys!
Dori is 10 months old today.