You have to love women’s bathing suits. They are generally very carefully designed to provide minimum cover of her arousing flesh and also it is generally really easy for the wearer to ‘accidentally’ or on purpose expose more of her primaries (titties) should her mood go that way.
I had a pretty amazing girlfriend once (who I still know, Hi Amanda) who on one occasion was not happy with the amount of flesh her bathing suits exposed and made some alteration to them so they exposed a little more (remember the blue and white slide-apart bikinis you spent a whole night altering to show more side boob?).
James.
Just Boobs 
love your boobs