I saw my neighbor masturbating

I am new here.

Always liked watching or spying I guess. Some new neighbors bought the house behind us. A week or so later, I noticed the lady was out in their backyard nude sun tanning. I was really surprised. I watch her for a while. My deck in our back yard is higher than their property so I could clearly see her. I was quiet and just watched. She was having a few white claw’s and smoking a joint. I went back into the house and forgot about it until I heard some muffled type noises. So being a curious type, I walk out on to our back deck and she is masturbating with a suction cup dildo on a hard plastic outdoor chair. I was super shocked, as I continued to watch. She held onto the back of the chair facing her sliding glass door, while riding the dildo. I could not stop watching. I could hear my wife walking around upstairs. I began to get nervous, as I did not want my wife to catch me spying, on the new neighbor, that we had not even met yet. I know this sounds like every other story blah blah blah. Well my wife is going through Menopause and we have not been having much sex, so I just could not stop watching and this lady was going at it like I could only dream of seeing. After about 20 minutes or so I Had an erection. The excitement was killing me, I needed to either stop watching or relieve myself. I decided to go back in the house, and just leave it be and respect her privacy.