any advice?

Is it true that girls who have sex develop a mature body faster because it rapidly changes your body. Like it will make your boobs bigger, and waist wider. My brother's ex's have gone through the same experience. I was just wondering bc I'm so flat I'm a 34 a and I have a tummy but I dont have curves nor do I have a booty or wide hips. I just want my body to mature so I can glow up. Besides I've heard that "find your self good dick so you can glow up" is that true?😩 if you experienced any chnages after loosing your virginity pls comment down below. I'm a desperate teen 16yr. 😚 thnxs