Yeah... and that's really more of a society thing than it is something that is inherent to life.
And even then, what people deem to be masculine or feminine are static. Pink used to be a boy's color, a woman working in the office outside of bringing coffee to the guys was absurd, high-heeled shoes and thongs were made for men, etc.
Hell, for all the "OMG WHAT IS WRONG WITH THE GUYS THEY LOOK LIKE WOMEN NOW WHY GAME FREAKS" complaints? The bishounen thing is very much accepted in Japan, hence why it's so popular.
"Murder of the living is tragic, but murder of the idea is unforgivable." - Janus, speaker of the synod