A couple years later, once I had gotten really good at jerking off, I was home sick from school, so was in my bedroom all day. I felt frisky enough to play with myself experimentally, kicking my feet up on the wall and cumming on my chest and face. I cleaned up after and went into the kitchen where my mom was reading the newspaper. 

She gave me a long intense look and then turned back to her paper and asked what was running down my neck. 

I wiped at it and found a stream of cum I had missed. I blushed all over and didn't know what to say. She made an excuse for me, that I must have spilled my drink on myself. But I know that she had spotted my cum and knew what it was. So the first woman to see my cum was my mom.