[Natsu]

In case anyone was curious, ビデ is read as "bidet" (i.e. squirt water up your ass).

This among the many reasons why it's helpful to at least learn to read kana before visiting, as it makes a lot of things easier--there are an awful lot of English words written in kana that you can decipher (well, French in this particular case, but you get the point I hope).

[ranebo]

Actually bidet button is usually for women, I wouldn't advise pressing it unless you are one, or you will get a blast of water significantly forward of the desired target. おしり(oshiri) is the button thats useful to both sexes.