Growth

My boyfriend and I have been speculating for a while, thinking that Leeloo will be done growing when she's filled out across the chest. Some people say double the weight at 4 months is how big they will get.
So, she was 8 lbs at 5 months, and now she's 8 months and i dunno what she weighs.

I really want to get her muttluks but i don't want to get them if she's still growing.

How old were your bostons when they stopped growing?