When I was 19 I went out at 12:00 at night and went over to this secluded dark park that was surrounded by trees and had no lights on, stripped off my pants and underwear and walked around half naked, I did this a lot actually. But this one time I decide to jerk off, so I went to the jungle gym and over to the slide, sat down, then laid down and put my legs in the air to reveal my asshole and then started to wank. I did this on purpose because around the time every night there was this older guy (probably mid 50's I think) who would always come out of his house with this really annoying dog of his and he'd carry a flash light with him, he always came to the park where I was at but I'd usually hide from him or pull my pants up and walk away before he could catch me. This time I wanted him to catch me---just to see what he'd do. So there was lying on my back against the slide, my hole revealed and vulnerable, jerking off pretty hard when sure enough I heard him coming, I saw the light from his flashlight coming up behind me and heard his annoying little dog barking in the background. The dog must have sniffed me out because there it was at the top of the slide above me yapping at me, but I didn't stop masturbating. He followed his dog over to where I was and still continued to wank. He flash the flash light on me and said "Oooh what have we here" (I think he was German or something because he had something of a thick accent to him) and just looked at him and continued to fap. He asked me what I was doing (wasn't it obvious?) I told him I was 'masturbating' and stretched my legs out as far as I could and I asked me to rim and then fuck me. HE DID! Without question, just knelt down and stuck his tongue inside me and then shoved his flashlight inside me and eventually we got to the fucking me. What was annoying was his dog kept barking a lot and even slid down the slide and began sniffing my face and licking me and he had yell 'shut up' at it a few times while we were doing it. He must've been pretty strong for his age because he picked me up several times like I was puppy dog or something and continued to fuck me through out several different areas of the park. We finally cummed and soon after that I couldn't believe I had just done that. He and I just casually talked after that and he went on his way with his annoying little dog and I went back home. I never went back because for some reason I felt guilty about doing something like that in a park...with someone several times my age...who I didn't even know...but now I kind of wish I did go back for more.