Mistress, every domina is slightly different. Years ago one would not dare to suggest what the Mistress would wear the first time serving Her for fear of being accused of topping from the bottom. In the past decade with dominas showing so many looks on their sites many, like you, are more flexible and dress close to what the activities or the roleplay call for. In my experience a couple of times when I became a longtime regular with a Mistress I was requested to buy a garment, even makeup, for a scene.