The last time a sandstorm hit raged through Jakku, Rey was caught in the middle of it. She lost her way back to her place while traveling through the storm, and became stranded in a remote camp off her usual route. The deadly storms on Jakku would last up to days, even weeks at a time, and her scavenged parts could only sell for so much.
When Rey's supplies quickly dried up, she discovered the local glory hole run by the camp-master. It was the only alternative for a woman with no ties who didn't plan on becoming somebody else's plaything, and Rey was out of options.
Working on her hands and knees by the day gave Rey a never-ending lesson on alien anatomy. She couldn't turn her head without coming face-to-dick with a new species of cum-spewing appendages.
The pay was bad, and the competition non-existent, but Rey managed to survive through the storm on sixteenth portions and all the tips she could earn.
Once the storm finally lifted, Rey made her way home with stained clothes and a full belly. The next time a storm hit, she would know where to weather it.