It started innocently. I was looking out the kitchen window, my house sits above the neighbors in the back, when I noticed my neighbor, who is in her mid to late 30's washing dishes. I noticed see was ready for bed, she was wearing a very low cut nightgown and as she leaned over the sink I could see her very ample cleavage. So I turned off my lights and got my binoculars for a better look. She had a nice pair of tits and the material was shear enough so that I could make out her nipples. Needless to say I felt a stirring in my pants that needed to be released. So I'm rubbing my dick thru my pants when I was startled by her upstairs bathroom light going on. So I focused on the bathroom. There I saw her 15 year old daughter standing in front of the mirror nude.
Now I never thought of myself as a dirty old pervert and I know this was wrong, but I couldn't take my eyes off her cute budding breasts. By now I've got my cock out of my pants and I'm giving myself some long loving strokes. She's still in front of the mirror but now she's feeling her boobs. I thought I'd died and gone to heaven. My cock was getting as hard as it has been in years, and now she's rubbing her nipples, and I'm having trouble holding the binoculars and stroking at the same time. I'm really starting to get to the point of no return when her one hand moves down to where I can only guess where it went and the look on her face totally changed. I felt my orgasm shooting out of me with such intensity that I dropped the binoculars and shot cum all over my kitchen floor. It was one of the best jerk-off sessions I've ever had. When I got it back together and focused across to the bathroom window she was gone.
I felt really dirty about what I had seen and done, but I really hope I get to see her develope and I hope to live to see her at 18 years old doing the same thing or more.