How can i gain weight ? i've been trying to gain weight for the longest . i want hips and a butt

Carbs: Eat more carbohydrates and that should help :).

Weight gain is easy!: Weight gain is easy, as a healthy/meaningful gain in lean body mass as goal--but u can't pick where it goes! don't take products for quick results that sacrifice your future quality of life. Exercise vigorously, eat balanced meals, stay hydrated. Explore medical reasons why you have difficulty gaining--thyroid/ adrenal problems, diabetes, malabsorption, pancreas insufficiency, crohn's, infection..