Can Nieces and Nephews see you nude?

This may seem perverted but its a very honest question 4 me. My Husbands, sisters kids are coming over to stay with us. I have been to their house and they have absoulutly no modesty. Me and my husband; however, do walk around our house nude after showering or bathing... or something. Though we don't need to do that at all and we could stop there might be times we r forced to. An example is when I hear my little 1 mnth yr old crying. The other day I was in the bathroom changing, heard him cry, and made a dash, nude and all. I'm just wondering if I should take every precaution against them seeing me, or if Its ok just to keep my normal habits?