I think it's good for them to see you naked like it's no big deal as and when it happens - I remember seeing my parents naked say if we crossed on the way to the loo in the middle of the night etc, I won't mind my LO seeing me up until she finds it embarrassing. Her Dad on the other hand is weird about nakedness and even now he covers himself virtually all the time and only is ever minus pants when in the shower or dtd, he wouldn't dream of having a bath with her! Wish he'd loosen up tbh, don't want to promote this idea that bodies are shameful.