Quote Originally Posted by Loony BoB
Everyone has muscle.

If you have a crapload of drugs or whatever, I'm sure you can bulk up. There are probably high-iron diets (or high-something, anyway) that can bulk you up too.

Some skinny guys can, some can't - at least not by merely working out a lot. I can work out a lot but I won't bulk up. My muscles might get stronger, but they don't get bigger.
Yes you will. Not overnight, but if you seriously go through a workout regiment for a couple months complete with a high-protien diet and maybe some dietary supplements, you'll put on muscle. Anyone can put on bulk muscle, it just depends on how hard you workout and such.