Can't stand the sight of a naked stepaunt in the room alone

When I had just finished taking a shower, and was about to go to my room, I saw from the door of my stepaunt's room that was slightly open, my stepaunt was naked while looking in the mirror, it seemed like she was proud of herself because of her sexy body and beautiful face. I went straight into her room and I locked it from the inside, I immediately showed my cock and hugged her.