Fitting in with Sis (Short Cap)

My Sister and I never really got along all that well, we didn't hate each other but we weren't best friends or anything. But then I suddenly got Second Puberty and things changed. I had a tough time at first but strangely she was there for me, supporting me teaching me how to take care of my body and do girly things, she even taught me how to put on a bra.

So when the changes finally stopped and I became the blonde bombshell you see here she took me out to celebrate, for the first time I felt confident saying my sister was my best friend.