I had sex with a homeless woman and I feel horrible about it

I (M24) was out drinking with some folks and I met a woman. I don't even remember her name, but I was pretty gone. She had on a floral print dress and she looked over at me and smiled, and I smiled back. She came over and we talked. Then we went to the parking lot and fooled around. I didn't even have a condom, and she had on no panties, so we went all the way. I had sex with a homeless woman behind a dumpster. There were people around us doing their own thing, and we were in the middle of it... doing our own thing.<br><br>I gave her my number and she had no phone, so she wrote it down, but I'm pretty sure she just made up numbers because she never called me. I don't even know if she had a way of calling me.<br><br>I tried to find her the next day in the spots I usually see homeless people, but she was nowhere to be found.<br><br>I'm not mad that I had sex with a homeless woman, but I'm mad at myself for taking advantage of someone who doesn't even have a place to call home. I feel horrible, but part of me feels like it was just mutual pleasure? But a big part of me feels like I'm a piece of shit.<br><br>Edit: If anyone is wondering, no, I did not pay her and no, I did not know she was homeless beforehand. Also, she was not some disgusting, smelly, toothless woman. Like I said, she had on a floral print dress and she looked clean (as clean as you can be when you're homeless).