Upgrade to a double boob job.

"Hey Bisca," Natsu grinned as the green haired woman kept licking at his balls.

"Yes?" she asked, looking at him, and continued to tongue his scrotum.

"How about you start using your tits? Submit," he told her, not giving her a chance to refuse this time, and she immediately nodded and straightened up, placing her boobs against his shaft from the side.

"Hey Levy, join me with this," Bisca said, and Levy let the command from Bisca take root in her mind.

"Sure," she replied, straightening up and pressing her tits against the other side of Natsu's shaft. With his cock sandwiched between two fairly nice sets of boobs, Natsu moaned happily.

"Wow girls... This feels great," told them, reaching forward and putting his hands on both of their heads as they cooed happily.

"Yeah, this is a lot of fun," Bisca agreed, continuing to work her tits up and down in tandem with Levy.

"Yeah, I hope we can do this again when we're done..." Levy cooed, having gotten really into it by this point.

"I have a feeling I'll be arranging that," he remarked in a pleased tone, and kept pumping his hips into their cleavage.

"Can't wait," Bisca agreed, licking at Natsu's tip as his precum leaked out. "You're about to cum, aren't you big boy?"

"Oh yeah..." he grunted, and this prompted the two of them to work their tits up and down even faster and press said boobs together with his dick between them more firmly. He grunted out as he released his seed, coating their faces and tits.

"Wow..." Bisca cooed as Natsu panted.

"Can you get us a towel or something?" Levy asked Natsu.

"Actually, you girls should just lick each other and yourself clean, Submit," Natsu smiled.

"Yeah, not happen- not again Bisca," Levy groaned, seeing Bisca lick herself happily.