Mary's story#39179 gave me the courage (and hardon) to reveal a long held secret.
My parents married in their late teens which only lasted to just after my birth and I was raised a single child by my single parent mother. Her first real contribution to my sexuality was to let me escape the maternity ward with foreskin intact. I was an early bloomer and discovered how to use that early on and began getting pubic hair and genital growth in my 11th summer. By 15 I was a slim 6' and well equipped between the legs with dark hair like my father. Mom was blond and slight-tomboy athletic and ranked amateur tennis player. She sent me to an all male private school where my precocious physical development preoccupied me and created locker room interest among my less advanced classmates. My adolescent sexuality was boy-male oriented and my mother discovered that when a younger friend from the neighborhood slept over and she caught me masturbating both him and myself. In the morning after he left she sat me down in the kitchen and didn't scold or shame me but grilled me about my interests-it was obvious that I was isolated from girls and on a path towards homosexuality. A path she also had been on at my age which was really only interrupted by the affair with my father and then in remission since. I had seen a school yearbook full of bare males in a locker room but never a bare tit or vagina. She resolved to change that. Looking back now and reading Mary's mother/son story giving the mother's side of it, I realize for my mother it was also a mixture of concern and probably more than a little desire. I was an attractive physically developed masculine male which I'm sure helped her give into incompletely developed heterosexual desires despite the mother/son taboos and in doing so probably diverted both of us from a homosexual path to a bisexual one.
So following the kitchen inquisition that morning she sent me to shower and said when I finished and dried off to come to her bedroom before I dressed. I felt weirdly aroused as hell in the shower and arrived naked and semi erect in her room. She was sitting on the side of her bed in a robe. I stood in front of her by then with a maximum erection as I am now texting this and she pulled open her robe threw it back. Mother and son naked and aroused appraising each other. Her small breast had large areolas which were contracting around hard nipples. Her open thighs were divided by a large mons with a rug of blond bush with prominent labia protruding through the hair. My penis was in its boned upward curved stance out of a growth of dark pubic hair and large balls were dividing a naturally smooth scrotum and drawing up to the base of the veined shaft. Both mother cunt and son cock were making visible precum and an erotic cunt/cock combined aroma. It was too much and I felt myself about to explode. I rushed into the bathroom and ejaculated into the basin and then stood by my mother and watched her masturbate to orgasm.