Omg! What Did I Do?

This one night, I was surfing, just looking for dicks on a site that most people here will know well so I won't name it. I found a really hunky looking one! VERY big, thick and easily enough to satisfy my lustful, although I admit, at the time virgin body. We got to typing to each other and he said his name was Mike.

I'm very careful never to show my face, and nothing that could identify me because, well, there are some pervy people around aren't there?

In no time we were doing it on cam for each other. I had my legs spread wide and rubbing myself first through my panties and then with them to one side, finally with them off. It was one of the first times I had fully exposed myself to a guy and it made me almost dizzy with excitement.

Anyway, Mike blew a huge load, onto his chest and tummy, and then I came too, and although it wasn't much, I squirted a little.

When Mike reached for a tissue to clean himself up, I took a deep breath, and nearly wet myself, because there, on 'Mike's' left side was my brother's birth mark! I had an awful sinking feeling that I had just got off with my own brother, so I had to know and typed 'Steve, is that you?' He typed back 'Uh, yeah, do I know you?' I typed 'NO' and closed down.

I lay in bed thinking about what had happened, and realized how turned on the thought of anonymously doing him and letting him see my cunt had gotten me, that night was almost eight hours of jilling!

Sometimes, forbidden is good!