If he provides you the clothing he desires, and you need to wear it only in a closed space such as his house, then that's just a kink. If he wants you to wear them outside, then you need not comply at all, nor should you.
You should tell him that you don't feel comfortable wearing clothes like that. You don't like them. If he doesn't respect your feelings and decisions then he should not be your boyfriend. He must respect you just like you must respect him in order for your relationship to move well.
Do what your HEART says, don't do it because you boyfriend says so, if you don't like it, say that you don't wanna. Don't try to change something what you love because of another, it will ruin your life just little by little.
To be honest, I hate that kinda boyfriends, I would even doubt whether if he even loves you truly!
Don't do it if you're not comfortable. Give him an ultimatum. If you do it he does it too. If he loved you he wouldn't want the world to see what only his eyes should. Jeesh it's only six months and he had outrageous demands... doesn't sound too good.