There were no take backs in this little game of taming one another. Natsu was by nature a very tactile person and the things he knew he could do now with Lucy were merely the natural progression of that trait. And by god was it effective at frying Lucy's brain. Licks, nipping even sniffing. All of it made her react in so many amazing and entertaining ways.

"Hmmm did you say something~?" Oh yes he was well aware of the effect he was having and relishing it completely.