Teasing the window neighbor

The boy in the window opposite is a teenager who recently moved here with his family. We only speak to each other once, and usually just greet each other through the window.

So Jenny and I decided that I accidentally forgot to close the curtain while trying on my lingerie. I'll be naked, but with my back to the window. In front of me, my laptop's cam records everything! As Jenny says:

"First, because it wouldn't be fun for you to do that and not have a record to remember. Second, because that way you can watch when the boy enters the bedroom and his reaction."

So Jenny is out of sight of the window, and I'm already naked, with the panties in my hands, but crouched in front of the laptop just waiting for the boy to show up in his room. That's when I see a silhouette:

"He's there! He's there!", I repeat, excited.

"What are you waiting for? Start the show!", Jenny encourages me.

I get up, feeling my whole body tremble with nervousness. 'I'm doing this, I'm doing this!', I think, trying to appear as calm as possible in my gestures.

While putting on the panties, I leave a side space where I can see the boy's "silhouette" on the screen. He's stopped, he sure saw me! So I arrange the cloth well, playing with the amount of exposure on my buttocks. Then he starts to approach the window...

"He's not trying to hide, Jenny!", I say, a little terrified.

"Obviously, he doesn't know that you can see him. And besides, he wants a better view of your parts..."

My best friend's words stimulate me, which makes me think about turning to face the window.

"I'm thinking of scaring him...", I say, my voice a little shaky.

"Do what your body asks, Ivy!"

So I take a deep breath, to take courage, and leave my little hills with pink nipples exposed to the window!

"Holy shit!", I say and quickly crouch..

"What's wrong?" Jenny asks, laughing. "Did he show you his 'sword'?"

"It wasn't the boy! It was his mother!", i'm in a panic!

"Houston, we have a problem...", Jenny says, ironically...