For freshman year of college, I'd gone away to school and my best buddy had gone to the local community college because he had to help take care of younger siblings while his single mother worked.
I came home for a long weekend. His mother was going to be gone and the siblings were off staying with friends, so I stayed at his house. We had been very open with our bodies, lots of skinny dipping, school showers after sports, plenty of spending the night, pissing together. So, when I got there, he had their swimming pool ready for a skinny dip with plenty of Coors in the cooler.
We spent the afternoon naked and drinking. Without us knowing it, his mother came home early. We first noticed her sitting in a chair watching us out the sliding glass door. "Mom's home," he said and we went scrambling for our towels. They were gone, now in a heap beside her chair in the house. She just smiled at us.
My buddy opened the door and asked for the towels. She said, "Its been so long since I seen a cock - like ten years. Nothing wrong with my watching, is there?" We agreed we could get over it if it made her happy.
Then, she became a bit more demanding. "Do some jumping jacks, will you?" We did and she laughed at watching us bounce.
"Let's see that dick dance," she encouraged. So, we flopped them side-to-side.
"Mom, let's stop," my friend said. "I'm getting hard."
"Me, too," I agreed.
"That's what I want to see."
So, we ended up boned up.
"Come here," she said, sporting a ruler. I've always wondered which of you was the biggest. She measured. We were nearly the same. Me 7.25" and my buddy 7.4". Mine was thicker.
That was the end of it. She gave us the towels. We dried off and dressed. She disappeared to her room for an hour. I'm sure wearing out the batteries in her vibrator. We've joked forever about our command performance dick-dance show.