Without surgery? You can't do that, unless you take certain hormones, or you decide to become a fatty in order to have a big natural boobs. And that depends on genetics, there are some girls who are fat but have small boobs.
Puraria mirifica is what traps in Southeast Asia take to give themselves breasts if they can’t afford surgery. It’ll give you 2-3 cup size increase but almost guarantees breast cancer later in life.
Fenugreek offers a more modest boost of a cup size increase, maybe two if you dose it high, but only a small increase in risk for breast cancer.
As with all of this, weight gain, good healthy fats in your diet, and lots of tofu, soy, and milk helps.
>>1813 I've looked this up and I only found one study so far that states it may increase cancer risk. I've even seen claims it may prevent cancer. I'm curious to see cases where it has caused breast cancer in humans.
>>1813 Apparently going through successful pregnancy reduces cancer risk and it often also makes you grow a bit. Can you easily get back to previous form in other places and avoid stretch marks though?
>>1838 No shit her boobs are huge in the last photo, that looks like a newborn so her breasts are either engorged or just coming out of engorgement. They will shrink in size and will probably go back to their original size, maybe a little larger, but probably also a littl saggier (an average estimate, some breasts get smaller after lactation ends, some breasts get much saggier, some don't get saggy at all, etc.)