Regular stimulation of the nipples can cause the breasts to think they are supposed to be producing milk, causing the milk ducts to go to work, fill with milk, and fill your boobs in the process. Unless you think you can handle this, I wouldn't try it. Plus, if you stop, the effect goes away.
No.
a pump maybe y
Yes
One thing that may increase the size of your breasts is gaining more weight.
Caressing your breasts will not make your breasts bigger. One way to possibly increase the size of your breasts is to gain weight.
Get pregnant. Then your breasts will increase.
Birth control pills can cause breasts to increase in size.
Yes, and change shape
letting you bf suck em
Birth control pills are not used to increase the size of your breasts. But sometimes your breasts can enlarge while on the pill but this is rarely the case.
You don't. Do not be touching anyone's breast that does not want you to. And the fact that you are asking indicates that you are not old enough to be touching breasts.
Breasts cannot be grown beyond puberty or pregnancy-induced hormones. It is a part of the body which is not able to change in size without an arsenal of hormones produced by the body. The only insured way to increase size would be to get artificial breast implants.