Demon Dragon King (Adoption)

What if Acnologia took Natsu on his quest too kill all Dragons?

In this story Acnologia was continuing on his quest too kill all Dragons. As he was walking in a forest he began to hear a small boy crying in the woods. Soon he found the boy who had spikey pink hair and had Crimson red scales on his cheeks arms and legs.Also having claw sharp enough to cut through Iron and black and red wings. Acnologia looked at the crying child and smelled around him, noticing that he wasn't a dragon but something different. He then noticed that the boy was giving off a large magic power that was melting the ground under. Acnologia took interest in the boy and took him under his wing teaching him his Dragon slayer magic. When Natsu killed his first dragon he then discovered that he could steel their magic gaining more magic. When Acnologia saw this he was amused and impressed by the boy and together they went out to slay Dragons.
Over the year Acnologia grew attached to the Natsu like his own son, he enjoyed the Boy. But one day Acnologia decides to part with Natsu so the boy could go on his own adventures and make friends and mates as Natsu is a special Dragon with unlimited magic at his disposal. Acnologia gave him three gifts a scarf made out of his scales, A Cloak just like his, and Katana made from an iron Dragon claw. It's Sharpness could cut a mountain in half with just a swing. Natsu accepted the gifts and went flying off into the distance setting off on his adventure.

Mature Contents
Lemon Scenes
I don't own anything except The story.