Song Right After Love Making Scene

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Right after she "makes love" with the pimp, there's an acoustic song. This is when they first have sex in the motel room and she picks up a feather. Can't figure out all the lyrics, but it's something about staying in bed all day. Does anyone know what this song is or who is singing it? I tried to listen to all the songs listed in the credits and on IMDB and haven't heard it. I love her voice and the song. Thank you