I liked this poem very much because it tells a story. Most poetry is cryptic and difficult to understand offhand, but this poem was simple and easy, with a lesson / moral at the end. That makes it interesting.
Shel Silverstein brings back fantastic memories for me as a child, especially this poem. I read all of his books on my own, every night before bed. So this poem, along with many others, touches me personally.
I don't think the title of this poem applies to the poem it's self at all, because the title is slightly vulgar in nature. The poem is a beautiful verse about a couple in love, enjoying each other's company both physically and mentally.