Daughter saw me nude

I had come out of the shower and was still nude and my daughter walked in . I turned my my head and saw it was her and for some reason I just turned around and let her see my full body naked .

She stared at my cock . Her eyes going to my face back to my cock a few times .

I started to get an erection and she stepped closer . I thought will she touch it but she didn’t she just looked . Then she turned around and left. I wonder what she was thinking?