HII!! I'm looking for a bl with straight sème but not those who immediately folds and sud...

HII!! I'm looking for a bl with straight sème but not those who immediately folds and suddenly turns gay the moment the uke acts cute or show more skin than usual. I'm talking about actual straight nonchalant sème that only sees the uke as just another man, friend, stranger, whatever but gradually falls for him overtime, slowly.