Natsu and Lucy has always been good friends, but after they both drink too much at the guildhall and they both go back to Lucy's place unable to think properly and not able to control their actions?
Lucy is the only one who is able to remember what happened while Natsu on the other hand is completely clueless. Lucy finds out that she's pregnant, in fear of what Natsu and everyone else will think she runs off to raise her child on her own. Now on her own with only her celestial keys and a future child, she must travel all across Fiore to find a suitable place where she can raise her child and where she won't be found.
(I have originally been only posting this on Wattpad but have decided to publish it here as well)