I visited my aunts house and my parents camed we me too. My aunt was brestfeeding her daughter in the bathroom.I didn't know she was in the bathrrom because I was playing football outside I felt to pee but when I opend the door I saw my aunt with her shirt off and her 24c boops showing.I raned downstairs and kept quiet. What should I do??

Nothing. This is quite normal. Women were given breasts for a reason. It is natural to breast feed a baby.

There is nothing you need to do unless you feel the need to tall your Aunt that you are sorry you interrupted her feeding time.