what my boyfriend did is he just said to me that he wanted more... like second base and once i knew he was interested we totally got into like oral sex and stuff
At age 13 you should not be touching your girlfriend down there period. You should tell her she needs to wash more.
Breast cancer is much more common in women than in men. While men can develop breast cancer, it's relatively rare compared to women. About 99% of breast cancer cases occur in women, and only around 1% occur in men.
Every woman's breasts are unique. You should not be wrapped up in their size. There is much more value in a loving relationship that does not depend on petty things like breast size. Perhaps you should reconsider your motives.
It depends on the size of the breast. If your breast is bigger then its going to weigh more
The fact that your good guy friend calls you his girlfriend and talks about making out is a good indication that he likes you as more than a friend.
When you exercize your arms, the muscles get bigger. the more you exercize your left arm the bigger that muscle and all associated muscles get. in the same way your left breast will become bigger than your right breast if you use your left arm more.
The two most common ways are to either pay for surgical implants (which would require her permission and acceptance) or to get her pregnancy (which should require a discussion with her beforehand, since having a child is a life-long commitment). Pregnancy and lactation will cause development of the breast tissue, making them larger for a period of time. However, after a woman is done breast-feeding her child, her breasts may return to their pre-pregnancy size. I think a very important question to ask is, why do you want to make your girlfriend's breasts bigger?
A breast collar is a device used on a horse. It mostly plays the role of enabling you to ride the horse. It helps in protecting the saddle from sliding making the process of riding the horse more comfortable.
Natural breast tissue is not as heavy as silicone.
If its with your boy/girlfriend, partner or significant other, there is obviously some chemistry between you two. I would recommend against making out with more than one person especially if you are in a relationship.
You then need to do it with his girlfriend.
He is likely making conversation with you and realizes your single - nothing really more than that.