So this one should be pretty interesting to write, considering that there's a lot of different ships that go along with Luffy, but since I like him with Nami the most, that's how it's going to be.
Anyway, check out winkwankwonk, she's doing a similar story to this, only its Ace instead of Luffy. It's called "Sincerely, Ace"
Luffy may be a little out of character in this but hey, it's not bad once in a while. This is written AFTER Enies Lobby, so probably when Luffy was sleep eating, maybe he was sleep writing too?
If you don't like Luffy and Nami together, you may want to skip this chapter.
Dear Nami,
My biggest fear when I first met you was that you wouldn't join me and Zoro to be the third member of our crew, and we were both hopeless with directions. It was a miracle that we even met you when we did. When we almost lost you though, that was one of the worst experiences. No one knew what to think, but we followed you anyway, even though you said not to.
We found out what you had been through from your sister Nojiko, and after that went out to look for you. When I saw you crying in the street, I didn't know what to do, so I just gave you my hat and promised to go after Arlong, plain and simple, I didn't think much about it at the time.
From then on, you've always been a part of our crew, a very vital part that no one could ever live without. When we were traveling with Vivi, a time came when we almost lost you again, to some bug bite.
It's a good thing we heard rumors about (Chopper reminded me of that witch lady's name) and we had no choice but to scale the mountain. I guess it's also a good thing you decided to go along with my creative idea, and Sanji came along too! I don't think I'll forget that experience for a long time, since all three of us almost died, but we're good now so that's what counts.
The next experience we had together was in Skypeia with Enel (I hate that guy). Sitting on the clouds with you was just… I don't even know how to describe it thinking about it now.
Thanks for being a part of the crew.
Whenever I look at you all these memories flash through my mind and I can't help but think maybe I do like you,
A lot…
Sincerely,
Luffy
P.S. I had Robin edit this since this letter is to you.