Christina, 20, Marysville: I agree with you completely! We also have a 10-year-old brother, and while it doesn't bother him to see our mom nude now, it probably will pretty soon.
This sexual factor is removed in the case of immediate family.
Express to your parents how you feel.
For me it was no big deal, but my sister had a hard time when she hit puberty.
If it doesn't work, avert your eyes and lock your door.
Maybe they don't realize the effect it has on you.