Yeah, at first you need to know, i do remember telling him about it about 2yrs ago, but yesterday was like:

L: spoke about history or personal stuff

Me, who even smelled it over 2 desks:“ Ey, L. I am sorry to break it to you and I really not sure how, but I have to tell you that you somehow stink“

L: „I stink“, he repeated ( It wasn’t a secret, I guess)

Me: „Well yeah and it is somehow really bad and you should see a dentist“

D: „ Yeah dude“

We spoke about it a little and came to the conclusion to see a dentist. Now that he smells is not the real problem, I even pointed out more notes and I really don’t want to be the bad guy, but we both are 15 and I cant take care of him like a mother. He is irresponsible and it’s not my problem.