I took my first anon load when I was a teen at my small town's park. I went there one night, went into the bathrooms along this train by the river, and waited. A guy in his 30s came in, saw me, pissed in the urinal, and left. I kept waiting and the guy came back maybe 10 mins later. I didn't really know how to signal my interest, so he made eye contact with me, grabbed his crotch, and said "want this?". I nodded and he indicated for me to follow him.
I followed him into this wooded/bushy area a little further down the trail and he stripped me naked and pushed himself into me. It hurt and he knew it was hurting me, but he kept fucking me anyway. I tried to pull away a little at one point and he actually covered my mouth cause I think I started making a little too much noise for his comfort. I also think at least one or two other guys saw me getting fucked by him. After he finished shooting in me, he pulled out and zipped up and walked off without saying a word. I just laid there crying for a while. Eventually I turned over on my back and jacked off. Shot a huge load on my stomach, slinged it off into the grass with my hand, got up, put my clothes back on and left.