Hello everyone. I have been reading many posts about bulking up and was wondering what that requires. I heard of bulking and then cutting but I'm pretty new to the "cutting" phrase and my guess is that its when you lose all the fat to make your muscles show through? Would that mean that in order to "bulk" you need to put on fat? I am 16 years old, about 5'9 and 138 pounds (about 13% body fat). I started about 3 weeks ago doing 3 full body weight lifting workouts a week to try to bulk up, when I realized how weak I actually am (1RM is only like 125 lbs on bench). Obviously I don't have much muscle on me but at the same time I weigh 138 so I'm not skinny but not fat. My plan has been to hit the weights 3 times a week for my upper body and on the other 3 days I am doing a vertical leap program that is strengthening my legs and preparing me for the basketball season. In all honesty I was hoping to get rid of some extra fat and at the same time replace it with muscle. I was wondering if it works to go at about 2000 calories a day, 400 of them being a 50g protein shake. Doubts were raised when I read about bulking and cutting, and my question is basically do I need to put on weight and fat and then cut it or can I eat better, take in protein, and work out to replace the fat with muscle at the same time?