Warning: I don't own Fairytail but if I did, one day... Kekeke...
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"PINKY!" Lucy leapt from the couch and landed a swift kick on Natsu. "WHY ARE YOU HERE?!" Lucy suddenly squirmed as she felt her knees hurting again. "Whoa, Luce. Chill!" Natsu replied."Anyway, you okay, Luce? I mean, uh, knees..."
"Don't you dare call me 'Luce', you pinky!"
"Luceeee~""That's it." Lucy got up slowly, ignoring the stinging pain and pinched Natsu's cheeks really hard. "OWWWW!" Natsu grimaced as he rubbed his oh-so-innocent cheeks that turned red. "You deserved it, pinky." Lucy smirked, adding on, "Now get the heck out of my house. I don't welcome you. Plus, Erza and Levy are out. What if you rape me?!"
"No, I am NOT leaving after what you did!"
"You won't dare to try me, will ya?"
"I just will."
"Don't..."
"Luce is a pig!"Lucy clenched her fists, and smirked, knowing her strategy. "Hey Natsu. You know something?" Natsu's ear twitched as he realized something. It was the first time Lucy called him by his name instead of 'Pinky'. "Oh?" Natsu asked, "T'seemed like you just called me by my name..." Natsu leaned in closer, hot breath against Lucy's ears, "Are you by any chance... interested in me?"
Lucy laughed, head hitting the couch. "Sureeeee... Oh yeah, here's something for ya." Lucy wiped her tears and grabbed Natsu's shoulder. "See, knew you were- OOMPH MY---!" Natsu just got kicked in the D (owned damn right, good job Lucy!).
"HAHAHAHAHA!!" Lucy kicked back her legs, laughing really hard. "Luce... you messed with the wrong blood..." Natsu got up, cracking his knuckles as he approached Lucy with his death glare.
"Crap." Lucy muttered and she went to hide. She ran up to her bedroom and hid by the window. Her knees were buckling up as they were aching really badly. "Nice hiding spot but found ya!" Natsu jumped out from the shadows and scared Lucy.
No hope. Either jump or die. I'd jump! Lucy considered hard on what she should do. "GAH!!" Lucy jumped out of the window from the second floor, expecting a hard blow. Natsu gasped and quickly grabbed her by the waist, and pulled her back.
"Idiot! Why'd you jump?! Were you committing suicide or what!" Natsu fell backwards along with Lucy, both toppling and falling into an awkward position.
"Yeah. I just had to, or else you'll-" Lucy got interrupted, "LU-CHAN, I'M BACK~" Levy screamed as she switched on the bedroom lights. "Oh, um, uh... GOMENOSAI! (Sorry)" Levy blushed deep shades of crimson as she quickly closed the door and ran out, flailing her hands in the air wildly as if she was drowning.
"What's wrong with Levy-chan today, huh." Lucy read her question out loud, and Natsu laughed. "Positioning." "Huh?" Lucy looked, and realized she was still in Natsu's arms! Needless to say, Natsu was kissing her hair. "EWWWW, PINKY!" Lucy tried to wiggle out from his hug but he tightened it instead. "What the... What?" Lucy muttered, then she had the best idea.
Lucy flipped over and faced Natsu, so now their noses was touching. Natsu looked away, blushing. "Aha! You got flustered. Burnnn!" Lucy laughed but her laughter died down when Erza opened the door. "Lucy, Levy said you and Nat- Oh, jajajajaja (Incomprehensible Erza Language), never mind!" Erza blushed and ran off.
"Positioning, huh." Lucy and Natsu looked at one another, then erupted into laughter.
(A/N: Fluffy NaLu moment there! I love how dense Lucy and Natsu are, probably denser than a rock. That's why, we ship it! Keke...)