Is it normal for sons to let their dad see them naked?
Ever since my three sons became teenagers (about 14 to 15 years old) they began to habitually sleep fully naked every night. I don't know why they started doing it, but maybe they just all preferred to sleep that way. They're 15, 17 and 18 years old now, they share a bedroom, and they still sleep naked all the time.
So whenever I walk in their room early in the morning to wake them up, I usually see each of my sons fully nude and asleep on their beds. Most of the time I would enter their room and see my sons on their beds sleeping with their penises fully erect (since they get morning wood) without the blanket covering them, so I can totally see it.
They know that I come in their room every morning, and they don't seem to care that I get to see them naked. Even after they wake up, my boys don't mind that their erections are right there pointing up in front of me for me to see, since they don't bother trying to cover it up.
I don't really mind seeing them that way since I'm their dad, but I am kinda surprised at how open they are with their bodies. I assumed most sons don't let their dads see them naked. Is this a common thing?