My husband loves the way my uhm,......smells

My husband is OBSESSED with the way my vagina smells. He likes it best after a long day and right before I shower. (I have an admin job so I am not sweaty and gross all day, just a little fyi) but he says its my "natural musk" and loves it! I have caught him continuously smelling my underwear or even pants and so I confronted him and that is what he told me. He comes in the bathroom when he knows I am going to shower and always asks if he can go down on me (who is going to turn that down, right?) but I know it is just so he can have his face in it and, well, smell it. He is always trying to go down on me or finger me or just flat out asking if he can just put his face there and I know that this can't be normal! Lol. I have NEVER met a guy who has done this and I don't know what to think about it. We have been together for 3 years and this is news to me! In a way it turns me on how attracted to me he is and always wanting to touch me and I do get pleasure out of his weirdness as he does it in a sexual way, but this is weird right? Do I let him just continue? Lol. Im not mad, just blown away lol. It's been a few months since the conversation and it stillshocks  me......men lol