Who has a taller, stronger younger sister? whats the difference between you too?

I'm 12 years old and a girl. I'm way stronger than my 15 year old sister and I'm 7 inches taller with bigger boobs too. She's 5ft4 and I'm 5ft11 and she's a B cup and I'm a D cup she's also pretty much done growing. Once, my sister took me too the gym to work out. There, she discovered how much stronger than her i am. She could bench press only 45 pounds for 5 reps while i could do 100 pounds for 10. I could also curl about twice what she could do 70 push ups while she could only do 20. When we got into the shower, she was in awe of my womanly physique and my big boobs. She asked me if i knew how tall i was going to be and i told her that i was going to be at least 6ft3, which is what my doctor said and that my boobs were still growing really fast, which they are. She has never bothered me and she always does whatever i ask, which is awesome.