This happened to me when I was 15. I was visiting my grandmother for a few weeks in the summer. She lives by her self in a two-bedroom house. One morning about 7:30, she comes into the room that I am sleeping in and tried to wake me up for breakfast. I had a morning erection and I really wanted to masturbate, but I never got time because she kept coming in to the room and I had to act like I was asleep. At about 8:00, tired of trying to wake me up, she grabbed the blankets and put them on the floor. I was butt naked with my cock in my hand
She sat on the end of the bed and told me to keep doing what I was doing. I was shocked. At first I didn't want to. Then she said, 'Here, let me help you.' Then, I started to moan and I came all over her.
She told me that I could masturbate any time that I wanted. For the rest of the time that I was there, I walked around the house naked. We would be just siting there watching TV and I would be naked. Then, I would start to play with myself and sometimes she would help me masturbate. She was really cool.