When a girl can't find her vibrator, dildo, or boyfriend, she uses her brush handle to fuck herself with. Someone may also Brush Fuck someone else.
Easier than trying to curl your hand up to get in there.
The larger the hairbrush handle, the better.
I got all wet and pounded myself with my hairbrush. In just a minute my thighs were shaking, and I watched the action with a mirror. It was better than porn, and I squirted all over the place. I came down so hard on the handle that it slipped out and I had to shove it back in. I love Brush Fucking.