She had decided that penetration was something that she would only allow herself occasionally, theorizing that she might become desensitized to it if she did it every time she masturbated. She began to look for other things that she could insert into her vagina that would be both safe and sanitary. She used her fingers, of course. She had a shampoo bottle with a long slender neck that she tried. It was okay, but wasn't as smooth as the hairbrush handle, and didn't penetrate much farther. She considered a candle and a banana, but didn't think either was a good idea. She liked to take a tub bath and would...