Inhibition is a learned trait. Modesty comes from a long time ago when some people freaked out because they saw a penis or something?! Seriously though, religious people don't like promiscuity and they think hiding our "shame" will make it go away. Fucking idiots.
Ironically, the religious nutz are the ones who are into some of the most vile things. Not just kink (which is fine), VILE. Religion & repression are evil.
My understanding is that pets do so as a sign of trust (ie, they trust you not to attack them when they're facing away). In the same vein, humans also stick their butts out for people they like, so maybe we're not that different after all
sassy little eunuchs
We're just embarrassed our assholes aren't as beautiful as our pets'
Sometimes we have those little epiphanies in the shower.. sometimes they come from other places. This is a home for those epiphanies.