Younger sis and I are both in our 20s, no kids yet.
Younger sis got her boobs measured again the other day. Every time she gets measured, she seems to get bigger. She is now a 30DD/E.
I have been a 32B for the last 10 years (I do get measured every couple of years in hope I will have got bigger), and doubt I will get any bigger, at least until I have kids. I don't really want plastic surgery and I already wear padded bras.
To top it all off, she is also an inch taller than me.
AIBU to be jealous of her. (I probably am, as she has a higher risk of back problems etc)