18 with narrow shoulders :/ Help !?

Hey guys

I have been training hardcore this whole year and have notoced significnt improvements, except i still have very narrow shoulders? what muscle group controls this look? and what excercises work best in broadening shoulders?

military press,side lateral raises,pull ups (yes this is for back but u will find your back and shoulders will make you look narrow) push everything to failure, also do some shrugs to strengthen the traps so you can get your shoulder lifts heavier.

Bud you are only 18 and your bones probably haven't stopped growing yet. You will fill out naturally over the next few years. Some guys just fill out quicker than other guys. Different people, different genetics. Just eat, eat, eat and do what DJ said. Don't even consider steroids for a few years.