There’s another FR post on this that says “twerking” rather than “grinding” and has a link to the video. 2 girls, one guy, all black. The guy obviously logs a lot of gym time and is in great shape. The girls are dressed like hookers and act drunk/high/both. One of the girls is attractive, the other not so much but not ugly, either. They were pretty obviously trying to drum up business with a good looking guy who wanted nothing to do with them.
:-)