What’s the difference between how you watch porn and I watch porn?
The windows we watch through.
What’s the difference between how you watch porn and I watch porn?
The windows we watch through.
Listen up, dummy! The "joke" is a play on words. The punchline is that the windows that "you" use to watch porn are physical windows (like, in a house), implying "you" are a pervert. I bet "you" also still use Internet Explorer, you freakin' Neanderthal.