Neighbors Morning Dancing

I lived in a high rise apartment building with another building only 50 feet away. At an angle to my front picture window was a teenagers bedroom. Every morning like clockwork she would open the blind slats, turn on some music and dance topless in her underwear with the lights on. Night time the blinds were always closed. For more than a year it became part of my morning routine to get up, put on the coffee, and while the coffee brewed I'd stand naked in the dark and jack-off to her dancing. I figured in the dark I'd not be seen. On my last day before moving away I got brave and turned the lights on while doing it. To my amazement she smiled, waved, and then flashed me with her panties down. I wish I'd shown her sooner.