Showering

It's six months since I've moved to Milan, and thanks to my housemate my masturbation has been as good as ever.

Most days than not, she masturbates in the shower, and she has never realized I do listen to her pleasure sessions, usually just in time going back pretending to have breakfast after jerking me off with her pleasure cries.

What I have difficulty with, is I have tried to audio record (using my digital camera) her masturbation sessions, but I never got much clear records as usually the water noise is too much. Now, how can I do it?