Should I use first person or third person?

If you want an emotional basis to your story, you should probably go with the 1st person, then you can exaggerate all the emotions that come with Romance and everything. However, if you want to focus more on the actual act of kissing and fooling around then you should do a 3rd person, so you can get as much detail in about the actions as possible. (By the way, I hope you use L, I freaking love L.)