...they are 4 and girl/ boy twins. Anyone had experience of this? Is this common and how did you deal with it? Should I stop them from having a bath together anymore? Tonight they were doing it and talking in silly voices about the other one's "willy" and "foof". Not sure if they will remember this and be really embarrassed. Don't need to make a big point of telling them to stop, but maybe better to stop bathtime together.