I washed my toothbrush

Tonight, after eating the remainders of the birthday cupcake icing, Elisabeth brushed her teeth. (I typically let her brush first, and then I brush for her.) I stepped out of the bathroom while she was brushing and came back to put more toothpaste on her toothbrush before I brushed her teeth. As I did, she smiled and said,

"I washed my toothbrush with soap," and pointed to the liquid handsoap on the sink.

I brushed her teeth, and she didn't say a word about the flavor of the toothpaste/soap!