Caught

I got home from school early one day because of snow. School had let out early.
I came in house i heard a noise in mom and dads room. I go down hall and the door was not shut. I could see mom on bed with some guy
F******. They were too in to it to see me.
I watched fir a minute and left.
She never found out i knew.
That was 20 years ago. Every time i see mom now I remember her naked with her legs wrapped around that guy.
This past Christmas mom was being all loving to dad and all I could think was mom thrusting her hips up to that guy and moaning and grunting.