Cana's.

Natsu led Lucy into Fairy Hills, knowing none of the residents would bat an eye at his presence thanks to the Sex Note. Of course, he still had to worry about the periscope the Guild guys had to spy in there, but he remembered that, and quickly solved it with another Sex Note entry that Gray would successfully hog it for the next couple of hours, keeping anyone else from seeing Natsu in Fairy Hills, and while he would get lucky enough to see a woman or two naked, he would never spot Natsu.

With that put of the way, he headed for Cana's room, writing, "Cana Alberona will allow Natsu Dragneel and Lucy Heartfilia into her apartment, and take her top off, and not question why she did either."

With Lucy in tow, he knocked on Cana's door, and she opened it. "Oh, hey Natsu, and... Lucy right?" she said, stepping aside as the two headed in. "Sorry, we didn't interact much, it took me a sec to remember," Cana said to Lucy, undoing her bra top and letting it fall.

Her boobs were exposed for a second before she covered them with an arm and smiled amicably as Lucy closed the door. "So... What can I do for you?"