Yes
Pregnancy is the most typical cause
During pregnancy, the woman's breasts prepare for the nursing of the awaited baby. The milk-producing glands increase in size and the woman can experience a breast growth of up to one pound of tissue or two cup sizes.
Well, yeah, because it starts to produce milk for the baby.
by kid you mean how old?
Pregnancy and increase of certain hormones can make breasts bigger, but only temporarily.
Get implants.
Breast size is determined by body fat, hormones, and DNA. To increase the size of the breast you can gain weight or have surgery. Otherwise, no cream, drink, food, pill, or exercise will increase the size of a breast. A good bra can help shape and firm it, though.
breast augmentation
Sure, in your dreams. Nothing will increase the size of your breasts. Except breast implants.
Eat chicken
None
No.