Ever since I was very young my mom had a very close friend named Darla. She and my mom were best friends about as long as I can remember. We would always spend time with her and when my mom went out of town or out for the night I would stay at her apartment.
Darla was in her early forties at the time of this story. She has long black hair, dark brown eyes and a rather voluptuous size. When I say voluptuous I mean just a bit heavy. Her boob's are sort of big and she's not very tall.
When I would stay at her apartment there was no lock on the bathroom door so whenever I would take a shower she could come in to take a piss. The shower had one of those clear glass sliding doors that were very visable unless it got very steamy from the hot water. I never had a problem with her doing that because the steam always blocked any view between me and her.
At this age I just started to get a boner and I had a very hard time making it go away. I would play with it all the time fascinated by my new boner. I would shake it and sometimes rub it against things that felt good to the touch of my cock.
One night my mom went out so she said I had to stay with Darla until she got back from her outing.
When we got there Darla answered the door wearing a pair of shorts and a T shirt. After my mom and her talked she left and Darla said that we could do whatever I wanted to do that night. She said she would start making dinner so I told her I would take a shower first.
I got into the bathroom and started getting undressed. While taking off my shorts I was looking for a place to put them so I folded them and put them on the hamper. As I looked into the hamper I saw Darla's dirty clothes. I noticed a few bras, shirts, pants. Then under the mess of clothes I saw a piece of her panties. All of a sudden I had a strong urge to grab it just to look at it. So I reached in and grabbed it, it was a silky red one, not a g-string or thong but just a regular one with laced trimmings. I got very turned on by touching it, it was so soft and smooth, unlike anything I had felt before. Just as I was about to put it away the thought of rubbing it against my cock ran through my mind. I could not resist, I was so turned on my cock was rock hard.
So I sat on the toilet and began dangling it against my soft penis. It started to get harder as I began rubbing it against the outside of her red panties. I was so turned on I thought about putting them on so I could rub my cock within her soft panties. So I stood up and began putting them on. They had a loose fit so I had to sort of hold them up but it felt great, I faced my boner upwards so I could rub it up and down with the palm of my hand. I was so caught up I did not think at all.
Then the worst happened. Darla opened the door and there I was, standing in her bathroom with her panties on rubbing my cock. Quickly I turned round so she would not see, she did not close the door or anything as I started taking them off as fast as I could. I did not care about her seeing me naked, that was nothing compared to her seeing me in her panties. Though all this was happening my boner did not go away just yet. So there I was standing there with my boner. I began to get into the shower just to get out of her sight. Then she said wait!