That is honestly an awful idea unless you're considering being full time. More things than breasts happen when you do HRT (hormone replacement therapy). The fact is that doing HRT is a decision that takes years and you really need to speak to doctors before being certain with yourself or you may regret it in the long run!
Also, water balloons!? Get a nice pair of breast forms. Balloons have the potential for some embarrassing (and painful) mishaps!
