I was 13-14 at the time, but I had an awesome experience of what could have been.
I was visiting my older brother and his wife. At the same time her sister Millie was visiting.
One evening my brother made a bonfire and broke out the beer. I was too young to be allowed to partake, so I just sat there and enjoyed.
Millie was a little bit chunky, but had tits. That is the bottom line at 13. Anything with tits. Sisters, mom, neighbours, teachers.
Every once in a while I would say I need to pee, but go in and jerk off. One time I went in and got adventurous. I went into the room that Millie was staying in and went to her underwear drawer. I got hard as rock. I pulled my cock out and started rubbing. About 38 seconds later, I was about to come, so I reached in and grabbed a pair of satin panties and SOAKED the gusset. After I nutted, I folded them back up as best I could and went back outside.
Forward to pre-dawn. My bro and his wife were ready for bed, and went inside. Millie stayed by the fire, so I did also. After a few minutes, she says, 'Let's go for a walk'.
We walked the Trans-Canada highway while she talked about whatever. I didn't care. A woman with tits had her arm wrapped in mine and was alone with me. I guaran-friggen-tee you I was absolutely dripping with pre-cum, but I had absolutely zero experience, and was too nervous to act on what might be.
We got back to the house, went inside,.........and went to our rooms.
I jerked off again, dreaming of the moves I made, the accepting responses she showed, and the pleasure we both provided each other. Of course, it was all in my mind, but it was ohhhhhh such a fantasy.
She never did confront me about the crusty, or at least, the soggy panties. Maybe she wore them without even realizing??....Yep, another jerk off session.