A girl can be healthy toned and in shape while thin, average or thick(like Beyonce)
There are *some* chubby chasers or twig chasers, but not too many.
In the normal weight range for her height. This means that maybe the ribs or hipbones are slightly seen but do not stick out a lot.
So normal weight, does not look very skinny or heavy or chubby.
hourglass shaped-has curves. Waist is significantly smaller than the hips, the universal waist to hip attractive ratio is 0.7 which means that your waist is about 70% the size of your hips/your hips are about 30% larger than your waist.
A big butt..not necessarily huge but round and sticks out, not flat or very small
Toned body...tight stomach and toned thighs, not stick skinny thighs
Nice chest. Doesn't have to be really big but many guys like big boobs, but definitely enough boobs for a guy to be able to squeeze well in his hands. many girls consider a C cup to be universally attractive but I think it depends on the body. On skinny girls I would say a B or a C, but on a girl who is average weight and has curves a D would probably look nice even if she is not fat.