Start with a double blowjob!

"How about we both give him head?" Lucy suggested, and as Lisanna blushed, Natsu nodded thoughtfully.

"You know what? I like that idea," Natsu replied. "If you both would please..."

"Yes, Master!" both Lisanna and Lucy chimed at once, and as Natsu worked on his shorts, freeing his hardening cock from them, Lisanna got on all fours on the seat next to him while Lucy floated over, placing her hands on his thighs.

Her mouth opened as she lowered her face down, taking his semi erection into her maw. Lisanna meanwhile leaned in and started licking at his testicles. "Mmm, oh yeah," he moaned, leaning back against the seat, panting as he allowed himself to just relax and enjoy the pleasantness of this scenario.

Lucy let Natsu grow to full mast within her mouth, before she started bobbing her head up and down on Natsu's cock. Lisanna pulled one of his balls into his mouth and started sucking it. After a minute, Lucy pulled off of Natsu's shaft, licked it from base to tip, and then moved to suckle his other testicle. "Oh, my turn?" Lisanna asked, releasing her own part of his scrotum, and ascended up to suck his rod.

Lucy giggled as she caught Natsu's gaze, giving him her best seductive look as she maintained eye contact while sucking his testicle. Her gaze smoldered into his, and she didn't break it even when they swapped again. "Oh god, this is never going to get old," Natsu panted, bucking his hips into Lucy's mouth.

Both girls kept going, sucking, licking, and even kissing every inch of his manhood like their lives depended on it. He grunted, his hips writhing against their faces and into the seat as he could feel his climax building. "I'm close..." he warned through his grunts.

This only caused them to intensify their efforts, and the moment they felt the pulsing of his impending release, they pulled back, Lucy jerking his cock, and both of them letting their tongues out. With a loud gasp, he let out a miniature geyser of his pearly white essence right at them. They caught most of his cream in their mouths, though getting their faces a bit. They crooned and pulled back, licking at his semen as he panted, catching his breath.