Howl Steaminess Rating

Exactly how steamy is this poem?

NC-17

Let's put it this way: the government thought this poem was "obscene" and that all copies of it needed to be confiscated and kept out of the hands of the impressionable youths of America. It probably contains more sexual reference than you even realize. Sex with sailors, motorcyclists, and even a naked "angel." You'd be hard-pressed to find a serious and critically acclaimed poem with more intense descriptions of sexuality than this one.