My (fucking) theory.

I have this theory. Think of any song you can that contains the word "love". I know, it's hard to think of a song about love, I'll give you a minute...


Ok.
Now sing that song in your head, replacing all instances of the word "love" with the word "fuck".
I bet the song sounds funnier now.
Of course, sometimes it makes no sense ("hello, I fuck you", "fuck to fuck you baby") and some are just plain wrong ("Jesus fucks the little children") but for the most part, The song becomes completely hilarious. It's my version of the "in bed" thing for fortune cookies.