After one try, she ends up going into a maid uniform!

"Alright, let me try this one out," Erza grinned, before her Requip magic swirled around her... Then faded, leaving her still naked. "...okay, what?" she then asked, and Natsu gave her a look, then Lucy.

"...did one of you mess up?" he asked, and Lucy pouted.

"Of course I didn't mess up, Master!" she huffed. "I granted the wish exactly within the parameters we mentioned!"

"And I did the Requip magic on the same manner as I always do," Erza noted. "So... I guess it's because the outfit I tried to Summon wasn't compatible with my sexual partner?" she then guessed.

"That's the most likely reason," Lucy nodded to Erza, who turned a pout towards Natsu.

"Seriously? You don't want to be under a sexy dominatrix?" she asked Natsu, who sweat dropped.

"That's the outfit you were going for?" he replied. "...yeah, it's probably a dragon pride thing, but submitting to someone just doesn't really appeal to me..."

"Don't blame Master for it," Lucy told Erza. "No one actually chooses what they are attracted to. Just like one can't choose to be or not be straight, bi, or gay. Of course... Given he has me, he certainly has more flexibility than most people."

"Huh, that's a thought," Natsu noted. "I could certainly wish for a... Submissive switch or something in my mind, but for now... You wanna try something else this time around?" he suggested.

"Well, okay, but I expect you to return the favor later," Erza huffed, before Requipping into a rather skimpy maid outfit. She stood and curtsied as her demeanor changed into something more demure. "Whoa, wasn't expecting my mood to be influenced this much... How might I serve you, sir?" she asked Natsu, who stared in obvious amazement and arousal.

"Whoa, you look even better than Mira does in a maid outfit," he remarked. "Though that be more about the skimpiness of this one." Erza giggled and blushed.