On the night before the day you work out, eat a heavy bowl of ice cream at midnight. It will stock extra fat which will be ultimately turned into some good ole fashion muscle. It helped for the Stevenson High School Football team

EDIT: Btw, workout your upperbody and back and such every other day. Your legs can be worked out everyday. I suggest if you want to quickly build muscle and also increase stamina, do a 3 mile run on each day you do not work out. Therefore, your work out schedule would look something like this.
Monday: Full Cycle
Tuesday: Legs and 3 Mile Run
Wednesday: Full Cycle
Thursday: Legs and 3 Mile Run
Friday: Full Cycle
Saturday: Light Workout / Rest
Sunday: Rest
Also, try not to use machines that much except the bo-flex. I suggest doing only 3 workouts. Cleans, bench-press, and squats. Those 3 workouts will build your strength extremely. If you are looking for beach muscles and less strength, do curls and use machines.