I'm the Heartfilia Twin (Natsu x Oc)

What

Natsu's POV
I just returned from where the new girl Luna sent me flying. "I'm back!" I smile and see a pink fuzz ball next to the new girl. She looks back and smiles. "Hey Natsu-sama!" She walks up. "Sorry about yesterday....I just held in all my anger against not getting to wake you up as a child." She rung a bell and I remember seeing the blonde.
--flashback--
"Igneel pweezz!" I hear a girl voice ask my dad. Then I get hit in the head. I jump up see a smiling blonde. "Yessss!! I'm Luna!" She jumped on Igneel and held a hand out. "I'm Nastu! Nice meeting you Luna!" Her sent was strong with dragon and I see a large teel dragon laughs at us. "Luna it's time for them to go." The dragon calls. She pouted. "But but!" She jumped off and waved goodbye.
--end--
I smile at the memory. "Hey I know you! Your the girl who woke me up by throwing a stick at me!" She blushed and then my sister joined us. "Oh so you know her too." We laugh and then the flying pink fur ball joined us. "Luna! Your sis wants you!" I said Ina small childish voice. Luna pet the fur ball. "Oh this is my exceed Moon." She smiled and walked up to Lucy. Luna jumped back blushing. Lucy laughed at her reaction.they then started to bicker. "Is Lucy-sama Luna' sister?" I ask. Sayomi laughs and nods. "They are twins. There dad sent Luna away to her dragon Lunra. She is acquainted with almost every dragon and slayer." My jaw drops. She was pretty cute.
Luna's POV
I was in full on argument with Lucy. "I so don't have a crush on Natsu!" I protest. She giggles and then I noticed he was behind me. "N-nastu!" I jump and blush a lot. Lucy giggles. "So your Lucy's twin?" I nod and Moon flies over. "Luna we should get going on a job!" I agree and we look at the board. I grab one which is to kill some guys. I smile and start for the door. "Ready?" I smile and use my magic. I fly off and carry my sweet fur ball. When we arive I landed right in the middle. Wow. "Hey pretty girl. Come here." I sigh and use Crystal to make a sword. They laugh at me in my shorts and crop top. "Oh wanna fight do yah?" They come at me. I sigh and swing my sword knocking them all down. "I win." I smile and then turn to see Nastu. "Hey!" Smile and then walk over. "That was awseome!" We walk back chatting about our dragons. "Hey this is from Igneel. It's says 'Luna do not read!'" He opens it and smiles at it. "Dam I love him. Why did he leave though." He more ment to say it in his head. "Cuz we needed to see if we can live alone." I smile at him. He grins that trade mark smile making my heart skip a beat. What is this feeling?