"You can cum on a wife who's made to suck many times , by her cum three more times, right ?" , says the narrator. He's referring to the fact that a wife can have her husband cum many more times before he returns home. The narrator is all, "Oh, wait a second, he's not home yet" . The voice in his head is his brother, who is on his way home. He whispers to the narrator to hold her moans while he goes home.