Lol, just because she doesnt shower doesnt mean she doesnt wash underneath her armpits and in the genital areas etc. its also normal that girls dont shower everyday since it ruins their hair and skin loose moisture whereas on guys we produce a lot of sweat, oil etc. and our natural oils are different then girls.
This was a hot topic for my middle school We found out white people shower more because our skin produces more oil and that white people don't use wash cloths.
Girl do you use a loofah instead? Also I think you're confusing showering with washing hair and skin with hair because if you're not somebody was lying to you.