Caught Wanking

I'm sitting in my lounge, having a quick wank when I look up and see a guy looking in the window at me - he's from a power company wanting to see if we'll switch providers. No idea how long he's been there but he's got a massive smile on his face. He tells me to keep going and I blow almost instantly. He licks his lips and walks away. I can't stop thinking about it. Makes me hard just thinking about it.