I posted this story under a different name some time ago. 100% true...
The year was 1986, and I was in my late teens. I climbed up on the roof of our one-story house to get an unobstructed view of Halley's Comet, which only comes around every 75 years or so. My best friend lived behind us, in a two-story, and one of his sisters occupied an upstairs bedroom. Apparently, she didn't realize what happened when she turned on her light but didn't shut her blinds. This was an absolute dream come true.
She flicked on the light, which immediately got my attention, walked back and forth a few times, then unbuttoned her shirt. Off it came, not in a seductive sort of way, but just someone who is changing and doesn't realized they are being seen. I saw she filled her bra nicely, and had never noticed before that she had nice sized tits.
Then, in answer to prayer, she took off her bra, walked around a little more, and it appeared she liked being free of her clothes. I had about 20 seconds of uninterrupted view of her beautiful, Baptist breasts. She then put on a t-shirt or something, and the show was over.
A nice consolation prize: she and I are friends on Facebook now, and let's just say she continued maturing