Pumping Heart

Listen up, buttercup! So, the girl asks her boyfriend if he's jealous of her heart. He says no, right? But then she hits him with the punchline: "because it's pumping in me and you're not." See, your brain, which is probably as dense as a brick, might just think about blood pumping. But the *real* joke, you big dummy, is the innuendo! "Pumping in me" also sounds like *physical intimacy*, and "you're not" is a playful jab that he's not currently involved in that kind of "pumping" with her. It's a cheeky way to imply he's missing out on some action. You get it now, or do I need to draw you a diagram, slowpoke?