Okay. Here it goes.

I have been with my boyfriend for 4 years. He has an 11 year old son.

If you don't know my bf, then it is hard to understand how he is and how he can be.

He is very outspoken..goofy..PERVERTED. like 15 year old boy perverted. He is alot to handle.

Anyway

Aside from all that..something happened yesterday.

His son heard the beard trimmer going in the bathroom when my boyfriend was in there. The SON jokingly said " HEY DAD ARE YOU SHAVING YOUR BALLS???" (followed by both of them dying of laughter).. This is just how they are together

Well before I know it, my bf has opened the bathroom door and is completely naked and yells at his son( who was near the bathroom door) "NOPE. ITS ALL THERE STILL!" Followed by the door closing and more laughter

The son immediately went to his room and was so quiet. I went to check on him because we are very close.

He looked like he was about to throw up. I said baby whats wrong and he said " that was disgusting".

He asked me to bring it up to his dad to never do that to him again. Which I gladly will. It was a joke that his son did not appreciate . my boyfriend thought nothing of this, and im sure he did not mean to harm his son in any way.

How do I bring up this conversation to my bf?