The son capricious only wants to fuck his mother

It only happened once: I fucked my son. And since then, I do not regret. I can’t explain how it happened, it just happened. My son has become a stalker from the day in which it happened, the fuck. He wanted to continue to have sex with me. Could not continue to happen. It was a terrible mistake that should not be repeated. His insistence was so strong that I had to send him away to the house. But every time he can, he returns to ask the same thing. This time, he had a plan of extortion that has left me with no escape. I couldn’t know the family what happened. Now, I submit to their requests. And this makes me think if the first time this happened, it was because I was manipulated.