Are you naturally a 30G ?
You say you want to be bigger but how big would you like to be if there were no constraints of real life ? What is your fantasy size in other words ? We have a pretty japanese Lady called Tenshi who has proclaimed she would like to, in her words, " tit fuck the Earth ! " . Do you have such fantasy ?
Naturally a 30GG. My profile pic is me, completely unaltered.
Hmm... Fantasy size is hard... I'd always want to be able to walk, but I wouldn't mind if they stopped me actually being able to hug someone...

I wouldn't like them so big I couldn't take a turn on top, or for them to make doggy style completely impossible, or for them to prevent me ever kissing a girl with similar size boobs. I suspect I probably fantasize about slightly smaller than a lot of people here, because in a lot of my fantasies, the other girl has HUGE tits too...

I wouldn't want to be so big I couldn't take full advantage of being with another huge girl.