I have been a big fan of this site for a few years now and I just love reading stories about masturbation. This is a true story that happened to me when I was 13 or 14 years old.
I took piano lessons from a woman in her 30s named Carol. Carol was a bit full-figured but still turned me on. She would wear tight shirts that showed off her big tits. I was dying to get a glimpse of them. It never happened but I did have many masturbation fantasies thinking about her.
One day I used the bathroom during a lesson and noticed that her bedroom was next to it. The door was open and I saw clothes strewn all over the floor. I saw several pairs of panties among them. The next week I returned and asked to use the bathroom again. I went upstairs and snuck into her room and grabbed a pair of her panties and slipped into the bathroom. I was so excited and pulled out my cock and started jerking off immediately. Her smell was strong and I put them up to my nose and inhaled. It was a wonderful scent. My cock was lubed up with precum and I just kept jerking until I felt that wonderful feeling grow. I released a huge rope of cum onto her panties. I rubbed my cum into her panties until it was relatively dry and then put my cock back in my pants. I dropped the panties back into her room and went back for the rest of my lesson.
Needless to say, every time I went back I also used the facilities and I think I really started to look forward to that half hour. There were numerous times that I did this and I always wondered if she had any idea. I stole a pair of her panties and took them home for many masturbation sessions.
To this day I still think about her panties and her wonderful tits when I jerk off.