Funny that you should mention that. I was down at CuriousLabs one fine afternoon looking at Poser 5 while it was still in development. LawnDartLawnDart was showing me Judy. Genitals. Good. Hair growing. Good. So I asked about armpit hair, and he so charmingly oblidged. It wasn't quite down to her knees but it was a very bright noticeable yellow. Only took him a minute or so to grab and group the polys and rev up the hair machine. I hope he doesn't make his own pasta. ;^) So, yes, it is possible to get armpit hair by growing it. Doing a subtle job with the hairs growing outwards and curling slightly will take refinement and tweaking. I'd suggest making two groups for each armpit, divided along "the fold line". As a naturally hairy woman, I can attest that we do have hair everywhere, including backs of hands and knuckles, but it is usually invisibly fine. It shows most in the pubic and armpit areas, with second-most-obvious growth on lower legs and forearms, and occasionally moustaches. (Being blond, I do not have a moustache, which is a great pity. I'd like to twirl one.) For good examples of extra hairy growth, you might check out the various museum exhibits displaying Cro Magnon and Neandertal families, so that you have a sense of the direction you want your hair to grow in for each body part. Carolly