Mother and me secret sex

Hello I am 23 years old.

I live with my mom (46 years old) and litle brother (20 years old). My father died when I was still young.

It all started when I was 17 years old, my mom had worked the whole day and was quite tired so she asked me if I could massage her back a little, so I did becouse I wanted to help out.
She was so pleased and happy, it was quite late so she asked me if I wanted to sleep next to her.
I said sure, I took a shower and went sleeping next to her, the next morning when I wake up she was still sleeping so I shaked her shoulder a little with the idea to wake her up. When she woke up she tried to hugged me, for the first time in my life I got a hugg from my mom and I felt her full body touching me.
She putted her leggs between mine and i felt her pussy with my knees, this was the first time in my life i had ever touched a pussy, it felt so good and exciting that it gave me a hard one, I quickly told her that I wanted to shower so she would not feel my erection.

When I was showering I stroke my penis so hard, I had never had such a nice orgasm.
Since that day I started to fantasize about my mom all day long everyday until it was unbarible,
then a couple of weeks later I got an oppertunity, we were watching a movie together with my litle brother and mom.
Becouse my litle brother had to go to school early he went to sleep early so I was left alone with my mom on her bed wating the movie, she was quite tired becouse she works all day long and fell asleep at 12 o’clock in the night. I turned the TV off and tried to sleep next to her, but her presence next to me was making me so horny that my penis became hard and I was touching myself while looking at her, then I slowly started to touch her leggs, she had a blue tight leggings on till her knees.