I was watched when i masturbated

I have written a lot about unfortunate events happened to me during Summer, involving trips to a local quarry pond and culminating in getting much more than I expected that day.

This story took place during winter and was equally embarassing:

I was sitting at my desk, chatting with someone online. We were engaged in writing an erotic roleplay story back and forth. As the story was very exciting, I was slightly touching myself through my jogging tights. I don't go full-out on the computer, as I don't want to get it messy. Thus, when the amzing story had wrapped up, I quickly went over to my sofa with the pictures of we just wrote still in my mind. I lay down on my back, feet on the armrest, legs opened. I slid my fingers beneath my jogging tights and into my panties, starting to circle my clit and sliding between my lips. Soon, replaying the events of the story in my head, I rubbed myself more fiercely. I pulled down my tights and panties over my knee to get more freedom of movement. I was feeling already wet by now, and spreading my legs more. I inserted two fingers and started to stimulate me in earnest. My butt rose from the sofa, as I pushed my fingers deep into me. I could hear the sound of my own wetness, which only stimulated me further. I was breathing heavily, my other hand grabbed my breasts through my top and squeezed it. Then, when I was feeling really wet and aroused, out of habit I reached down under the sofa. After some searching, I finally pulled up my wonderful red dildo. I put it in my mouth to lube it -not that it would have been necessary by- and pushed it into me. I let out a satisfied moan as I now continued to fuck myself with the toy. I reached forward with my other hand to tickle my clit as I pushed the dildo in and out. As I felt that I was nearing my climax, I grabbed it with both hands and concentrated on the images from the roleplay story earlier. Soon enough, I was tensing and moaning happily, satisfied as I was overwhelmed by a well-deserved orgasm.
Once I had calmed down, I took the dildo out, cleaned it on my panties and put it down under the sofa again. As I was about to pull my panties back up, I saw that a man was watching me through his window from the apartment block on the other side of the street, not even 20m away! Not only had I forgotton to pull down my shutters, I had also totally lost track of time. It was already dark outside and my room was well lit, so very easy to see what is happening inside. And to make matters even worse, I recently rearranged some furniture for a party, and that man now did have a direct view between my legs. I was totally perplexed, standing frozen in front of my window, with no pants or panties, still feeling the wetness between my legs. I couldn't see the man completely, but I fear he was actually masturbating to the view that I offered. And only when I saw his face turn a satisfied smile, I snapped out of it and closed the the shutters and turned off the light. Only then I remembered to put my panties and jogging tights back on.

Even though this was pretty embarassing, here is my trustworthy red dildo (I have another black one when I need to get more serious ;) ):
https://www.imagebam.com/view/GA7D5F