I'm not very good at teaching someone, but all you have to do is start from a skinny body then work your way up your weight goal of the character you're drawing and I also want to point out that you should always start with a head. Its easier for me to draw that way.
Thanks for anwering so quick, it took you like 5 seconds to reply while other deviants usally take about a day. I'll try to draw it, but it probably won't be as good as yours!