She Just Did It One Night

My parents divorced when I was around six then a few years later my dad died, stunned me for sure and mom also. When I was around thirteen mom came home from being over at a friends house, it was not unusual for her to hangout with them and I was in bed already. She came in and sat on my bed, we talked some and she began rubbing my chest and telling me I was getting so tall. This was not normal but I just laid there, she reached over and switched off the bedside light and I thought she was getting up. Her hand kept rubbing and going downward, she slid it right under the waistband of my shorts and began caressing my cock and balls, I tensed right up both from shock and it felt great. She moved the covers off me, climbed on top of my legs, pulled down my shorts and started sucking my cock. I was staring down but being pretty much dark in my room could just barely see anything just felt it all.
I started to ejaculate and moan out, she kept going sucking me like crazy now, fingers wrapped around gripping the shaft and lips sucking fast I was breathing hard. She licked and sucked me after it for a minute then kissed the head several times and told me good night got up and walked out.
The next morning I had no idea what to say to her or ask what was that all about, she was cleaning and I was doing my chores when she walked up to me and told me what a great man I was turning into, grabbed my hand and led me to my room. She told me to lay down on my bed, still had the same clothes on from sleeping, she pulled down the shorts and gave me another blow job.
Weeks went by, same thing going on with her sporadically sucking my cock, mostly in the evening at bed time. I finally asked her when she finished one why she was doing it, she answered with a question asking if I wanted her to stop doing it. I told her no and she said good and don’t tell anyone about it.