Originally Posted by Lightspeed

Making a full sale = getting laid
Upsell = You get to use the poop chute too
Getting a cross sell = she lets your friend fuck her too, now he owes you a 3some with his chick
One-click crosssell = introducing her to your friend, while she's naked in your bed, before she cums
Prechecked cross sell = all your friends fuck her after she passes out
Double prechecked cross sell = then they pee on her too