[Lacey Ra]

I just looked at a cross-section scheme of the mammary gland here:
http://en.m.wikipedia.org/wiki/Breast#section_2
And the solid thing I'm feeling in my breasts might be the lobules. Can those lobules expend through nbe? Because I'm sure it wasn't like that before. If I'm right them it's not fat :s
If their size can increase then it can also decrease!!!
Btw thank you for your fast answers ^^

The lobules expand with the the breasts, the tubing is slick and flimsy like not solid ya know. And there surrounded by a wall of fatness to protect them. And the majority of them are concentrated at the nipple region for breast-feeding. I think its prolactin/oxytocin hormones that lengthens the lobules. But if you feeling the thickness at the nipple region then yes, it might be the lobules+fat your grabbing but as you move away from the nipples towards the chest it'll be more fat then lobules. And as the lobules expand the body puts more fat in the breast to cushion then. And yes, they can decrease but with proper bust maintenance I don't think they should. Sorry for the essay.