I went back to dig up this post because I was thinking about poetry.
This is one of those non-poem things that are among my favorite poems.
As the OP stated, the use of alliterative consonants is aesthetically just great, especially the placement of the strongest use at the end: “fuck him on the floor.” The use of “chintz” is indeed great word choice.
Because I’m insane, decided to scan the poem:
Not only is the second sentence, indeed, perfect iambic pentameter, the entire poem is perfectly metered, though the first sentence has four iambs rather than five.
There are further things I love about this poem, though: I like the casual connotations of “keep it real” juxtaposed with “chintz.” It causes me to interpret the “chintz” more strongly as meaning something fake, a facade. There is also of course the coarseness of “fuck,” which is a contrast with “chintz” but a different kind of contrast, gutsy and carnal where “chintz” is flimsy and inanimate.
And then there is the storytelling: there is SO MUCH storytelling in just these two lines. To break it down: The speaker is having sex with a married man, in the house he shares with his wife, which is “filled with chintz”—something that here connotes fakeness, in contrast with “keep it real.”
The illicit encounter in the poem takes place within a house filled with facade, the flimsy construction of the wife’s marriage and domestic sphere, but the encounter itself is a taste of something “real.” That’s a story, and it’s just two lines.
This is EIGHTEEN SYLLABLES, y’all. The amount of meaning condensed into these eighteen syllables is stunning, and it is so elegantly done.
From a technical standpoint (and ive taken 300- and 400-level poetry classes so I can say this) this is damn near flawless as a poem.