Some people are bending & twisting my words. Not nice.

Breasts have to be modeled in their default "natural down position".
Period.
99% of all renders are arms down renders & morphs strech textures.

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!