Do you think the animators are aware of the thousand of erections they induce by making shit like this?
Yes, I think at this point they are perfectly aware that roughly 35% of their audience gets excited at the tip of a hat.
>"DUDE, DID YOU SEE THAT!? FLUTTERSHY SHOOK HER BUTT!!!!"
>"WOOOOOOOOOOOOOOOOOOAAAAAAAH! BET THEY ARE TRYING TO TELL US SHE LIKES ANAL!!!!!"
Most cartoon animators probably saw cartoon as children, and many of those probably got their first boner watching them.
All of them have previous knowledge of how to draw male and female human forms and those of different animals and they have to apply it every time they animate and draw shit. Some of them probably drew their own porn.
Of course they know, they are all perverts like us.