What is a good plan for muscle gain?

Weights, eat right: Creatine is a safe and effective supplement to a well-thought-out program of resistance training and adequate protein intake without lots of extra calories. I hope you'll decide against anabolic steroids; i've known men who've tried them and all were sorry in the long run. Remember most women prefer a lean man with moderate muscle mass to a man who's "huge". Good luck with this project.