Finish like that.

Natsu kept pounding into Aquarius, each thrust pushing her face into Lucy's boobs, much to her enjoyment. "I'm about to cum..." he grunted, feeling his dick throb.

Aquarius simply moaned, curling her fingers against the wall. Natsu felt her pussy clamp on his cock, before he grunted, and released his seed into her cunt. Aquarius cried out and needed Lucy to exert herself a bit more to keep her up.

Natsu panted, before grinning at Lucy, "You can let her down now." He then blinked as Lucy simply dropped Aquarius, causing her to thump on the floor, and yelp. "...I didn't mean all at once," he sweat dropped.

"Like, I know," Lucy giggled. "That was like, small payback for all the times she hit me with her attacks along with like, my opponents... On purpose."

"Oh," he chuckled. "Fair enough..." He looked down at Aquarius, who was curled up in some shame. Deciding to give her a moment to recover, he looked at the time. There were a few hours before he'd have to leave for the bout with Erza... Plenty of time to enjoy himself. He considered using another trigger on Lucy, but he had promised to keep her as a bimbo until they left, and a promise was a promise.

Still, there were other triggers other than the Alter Ego one, and they were all fun in their own right... Even if Lucy would currently be eager to do them all even without said triggers.