Too skinny?

So I’m quite small 5’4 108 pounds. And I’m in love with with people that are slim thick, but I’m also in love with people that are “sickly” thin. I wanna have that hourglass figure, but I’m so much closer to just being thinner. I have a athletic body I was thinking just to go down to 100 pounds because it’s so much easier to lose weight than it is to gain weight (for me).