>>33199745 (OP)Just to get it out of the way, one thing with an attractive big boobed girl is that they get attention non stop. So much so that it fucks with them hard once they age up and boobs don't get them attention anymore. If you date one it'll be in constant competition with assholes.
But for the big boob fetish - it's not about removing the desire. You're going to like big boobs forever, the same way you'll always enjoy a fresh slice of pizza. The trick is to not *need* it.
In truth, medium and even some small sized boobs can look pretty good when clothes come off, and can fill your hand. My gf is a washboard, completely flat. And at that small of a size you do start really losing some of that feminine figure, which is probably the biggest downside to flat chested girls.
But even at that point, unless the girl has 0 bodyfat you can still grab squeeze and knead them. It's just not a lot to work with, but you can do it. You just have your hand more open instead of cupped. And I can't prove this but I swear my gf has gotten a slight increase to the chest in the time we've been together. She still wears the same bra size and is very flat but her clothes don't hang completely straight on her body like they used to.
You could also buy those cosplay boob things if you end up with a flat girl and she's open minded. But I mean, that's not what any of us want. But it's ok to do too.
Anyway if she isn't completely flat then make her orgasm a lot and give her ice cream sometimes. It won't turn As into Ds but it'll do something. Estrogen plus readily available dietary fat, the body will put the pieces together. Note I am not a scientist or a doctor.
Closing thoughts: The only thing you'll really have to abandon with a smaller chested girl is the idea of paizuri. But honestly the girl would have to be pretty big to do that anyway. And last... it's ok to have desires and standards anon. If you want boobs, don't settle for less. It's ok to hold out.