This is an absolute longshot, but I'm trying to find a video i watched a few years ago.
I THINK the title had her name in it, and it started with a J. She was a teen or younger 20's, and she was riding a guy cowgirl (pretty sure it wasn't reverse). The angle was sort of from the side, and you could see it in the mirror. This probably isn't enough info, but it was hot as fuck and I don't know if it was popular back then or anything, I thought I'd try this