Check out Dan Chiasson's very funny and sharp review of David Lehman's The Best American Erotic Poems. Here's the money shot: 

"… precious space is devoted to John Updike’s 'Fellatio,' perhaps the worst poem ever written on any subject, which begins (reader, I kid you not): 'It is beautiful to think / that each of these clean secretaries / at night, to please her lover, takes / a fountain into her mouth.'"