Women's One Piece Athletic Racerback Swimsuit Slimming Bathing Suit

According to the size chart and against my better judgement,, I sized up 2 sizes to take into account of my 38DDD bust. I wear a size medium bottom, usually go up to size L for button up shirts so nothing gaps. The chart suggested I order XL. I have it in a hot wash and will dry a hot dry. But I doubt that will be enough. The whole suit is too big. The bottom legs in the back gap open. The bra and the entire suit is at least 1 size but most likely 2 given how 1 piece suits usually fit. The style is flattering. I am 5'3”, 140lbs, size 12 pants are loose. So, I would suggest people to order their normal size. There are no ties, buttons, zippers. You step in and pull up.