you need to be a little more specific, what do you mean by "puff" and what part is fat,
If you are saying the lips are swollen (bigger than normal) you need to see a doctor for an exam. I hope at 14 you are still a virgin which would explain the tight, but any time there is a change in your body, other than normal growing, you should SEE a doctor, a lot of these issues can only be diagnosed by actually seeing the affected area.
yes