Just pull the straps off her shoulders and slowly work the bra down. Kiss on her breasts and stomach as you slide the bra down off her breasts. Then just move your way on down south. She won't realize you don't know how to get her bra off (from my experience ladies hate it when you fumble around with their bras, because you seem like a total amateur, but I'm sure a lot of cool chicks would probably think it was sweet) When things start heating up you can just leave it on or she can take it off while you're occupied with other things. Trust me, it works.