Late night park visit

His strong manly left hand eventually reached my panties, and he stopped, looked at me and softly says "That's something I wasn't expecting". I was stunned, and back to being a nervous wreck, I barely even processed what he just said. He took his hand away, and asked me to remove my underwear but not my skirt, I was so nervous again that I just did what he said, I didn't know what he was going to do, was he annoyed that I deceived him? I put my black panties on the bench, which were wet with my pre-cum, he told me to walk to the end of the bench and bend over, so I did. I couldn't see him but I could his feel his alpha male presence behind me, I heard him spit into his hand and then cover his cock with his spit for lube. Before I could do or say anything I felt this sudden pain in my anus, he didn't try to go slowly, he just went for it, I was pinned as this man went deeper and deeper inside me. He eventually had his entire cock inside me, it hurt but felt so good at the same time, he then asks if I'm okay, me only being able to reply with one word, "yes". And so he kept going, getting faster and harder after each pump, I started to moan, completely forgetting we were out in a public park, by this point I was in pure ecstasy. He kept slapping my ass which just made me moan more, I was in pain but I loved it, I felt like I was about to cum.
All of a sudden he thrust into me deeper and harder than he done prior, he held it there deep inside me as he moaned for the first time. I felt something happening inside me, it felt amazing, I felt his cock throbbing inside, his hands grabbing my waist tight, he came inside of me and unloaded everything deep into my ass. He pulled out and told me to lick his cock clean, so I turned around and got on my knees, his cock tasted even better now with bits of cum surrounding the head of his penis. I cleaned it up, and enjoyed every second of it.
He then pulled up his jeans, patted me on the head as I was still on my knees and walked away. Left me there alone after the most amazing fuck I had ever experienced. I will never forget him, I will never forget that amazing night.