dr dre has a track on the chronic called "the doctor is in" or something like that. some woman is asking for him, and another woman is saying he's busy, the first woman keeps asking, and the other one goes, "open the door and you'll see his big dick fucking somebody." then you hear dr dre fucking a woman with his big dick while they talk dirty to each other. not a really long track, and obviously not candid, but a great example of what you asked about.