A guy and a girl want to make out.
So they go to the girl's house and before entering her room, the girl stops and says, "My little sister sleeps on the bottom bunk of our bed and I do not want her to know what we are doing. So when I say, 'Baloney,' it means push harder, and when I say, 'Pastrami,' it means push softer."
With this, the two get onto the top bunk and gettin it on. First the girl moans, "Baloney! Baloney! Baloney!"
Then she shouts, "Pastrami! Pastrami! Pastrami!"
Then she switches back to, "Baloney! Baloney! Baloney!"
Finally, the girl's sister yells, "If you're going to make sandwiches up there, you'd better not spill any mayonnaise on me or I'm telling mom!"