I am not trying to be smart or snarky, but have you ever heard of the saying "what you won't do, another woman will". Don't get me wrong, I am not saying your FH will cheat on you, but you have to be realistic. Men have all types of fantasies and visions and when they can't act out their visions at home, what do you think they do? You are going to be his wife, and it is your job to make sure he is satisfied. If he asks you to do something like have an orgy, that's different, but if he wants to try different things with just you and him, you should be willing. You don't want your man to get bored with you, and you don't want to get bored with him.
Just a word of advice from a woman who hasn't been a virgin for a LONG time (16yrs). Try to please your man in anyway possible, and believe me, after a while, you'll be surprised at the different freaky things YOU want to try :-)