This happened when I was 17.
I was taking a shower in the upstairs bathroom. Since I thought I was alone in the house I didn’t bother bringing clothes in with me. So I dried myself off and went to the hall. And as I turned the corner, to my surprise my mom was walking towards me and saw me. I quickly covered myself and she had a slight look of surprise on her face.
“I’m sorry mom. I thought I was home alone.” I awkwardly said to her.
“That’s okay dear. And stop covering up, I have seen your penis before.” she said to me. I than uncovered my dick for her to see.
“Awww it’s so cute.” she said as I turned beat red.
“Cute?” I asked in dismay.
“I mean it’s so small and hairy, it’s just adorable.” she said as if it was a fact.
“You got to be kidding me” I said in disbelieve.
“Oh relax. There is no shame in having a small penis. Now go to your room.” she said to me. As I she walked pass she gave me a pinch in the ass.
From this day forth my mom calls me her “little boy”.