I did not want to get into this, but you are forcing me. She did have a bag but no hopper. When she first arrived on the court, she was alone, and wanted to carry a dozen balls to one side to serve. So she bent down, lifted her mini skirt totally up, took the balls one by one from her bag, and put it into her skirt like someone collecting alms, and then walked down the court with the skirt completely pulled up and holding the balls. Yes she was wearing compression shorts underneath.
Then after the 3rd warmup with me, she stood a couple of feet in front of me and explained how she watches every slow motion video out there to improve her technique, all the while with her skirt again pulled up and polishing her sunglasses with it.
The last time something like this happened involved a woman who would store extra balls in her top, and then meticulously search and take them out, but nothing like this.
And yes she is a bonafide beach volleyball semi pro. Saw photos of her with her team.