Thought I was in trouble

When I was 10, I was waiting outside a shy friend’s room while he dressed. His parent’s room was across the hall with the door open. Their bathroom door opened and his mom walked out naked drying her hair after a shower. Her eyes were closed so she didn’t see me. I stood there, frozen, staring at her boobs and thick bush. She finally opened her eyes, saw me, let out a shocked yelp and rushed back into the bathroom. I told my friend and he just laughed. I thought I was going to get in trouble. But later she apologized to me saying she should have had her door closed.