Uncircumcised men

My boyfriends not circumcised the sex is amazing but he always wants head and his D gives off a sweaty weird fishy odor even after a shower.. its not like a super discusting odor but enough to make me gag and not want to do it.. he showers everyday and washes good , but the smell is still there .. ive never been with an uncircumcised man.. is it normal for them to have an odor?