Hey Brina,
You are too funny!I have the same issue so my plan is to get a tri suit and wear my biggest/baddest sports bra under it. I'll just swim in it w/the bra underneath and the wetsuit on top. I think a lot of people just bike in the tri suit alone but I'm going to throw my bike shorts on top of the trisuit for the bike and strip them off and add my hat when I run. The bra is so rigid that getting it wet doesn't stop it from holding the girls very well! That's my plan anyway, and I like that I don't have to stop in a changing tent at all since it all can be done in transition. I'm sure you'll get some other ideas as well from some of the ladies with much more experience!
Good luck! When is your tri?
Tracy