If I never hear breasts referred to as perky again, it will be too soon. They can't be perky because they are not sentient. Calling them perky is a groveling bow to misogyny because that's what endowed them with sentient characteristics in the first place.
It is no accident that young, immature breasts are usually the ones being called "perky." This is in the same category of language as calling a young person's clothes "provocative." It is stealing agency from the person and giving it to objects as a way of manipulating young people into thinking that they are to blame for being objectified.