Most Helpful Guy
Girls with flat stomachs do have curves. Girls naturally have curves. People always say this, a thin girl with flat stomach still normally will have curves/shape, hips that go out waist that goes in. Sure sometimes its not as much as a larger girl but that is because girls on average will build fat in hip butt area first making there curves stand out more. That being said, guys find all different body types attractive. It won't prevent you from guys not liking you, some guys love that! Now if you are not happy with it, you can change that for more confidence, you have the power just get the motivation. But do it for yourself so you can look at yourself in a better way, not for a guy or guys in general because guys will find you attractive the way you are now, some guys love the really curvy girls.