It's hard for me to explain why this pairing is so great in my opinion - in fact, I can come up with a lot of rational explanations why it would never work. But I just love it too much! I like it the best when they're being total dorks and arguing about useless things. Fail sex where they make mistakes is also lovely, as is angst, provided that it doesn't get too exaggerated.

I'll use the chance to link to this awesome animated kiss: http://sabakunojackce.deviantart.com/art/PrumanoKiss-385349096