Hi, I have been working out 4 times a week since a year & 1/2. I am really skinny, but I have really toned arms.But the problem is that I really can't gain weight, or muscle mass. I try to aviod, candys, cookies, chips, cokes, etc.
Plz help!
Also, how can i get a nice hard butt? Which exercises help?
thanx a lot
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Me