They fuck.

She spun around, kissing him hard, practically shoving her tongue down his throat.

"To hell with it," she stated upon parting. "If giving into lust isn't what we're all about I don't what is. Come to the basement, there's a soundproof bedchamber down there."

Logan followed after Mei with a predatory stride as she quickly led him downstairs. When they entered, Logan shut the door. The minute the door closed Mei was on him. Once more kissing him, but now with inhuman ferocity as her tongue grew while inside his mouth. His own grew to match hers, wrapping itself around Mei's tongue. They didn't bother taking off their clothes, instead their transforming bodies tore the clothes from their bodies. Their transformations didn't slow their lust at all. Logan's clawed hand gripped Mei's enlarged breasts, squeezing them with fervor. Mei moaned with pleasure, her hands reaching down to take his monster cock in her hands, squeezing it and stroking it.

Mei suddenly, playfully pushed Logan to the ground. He smirked up at the sea demoness. She made a show of straddling over his body. Logan's massive, golden cock stood proudly erect. Mei promptly sat down on it, the massive tool splitting her blue folds. Mei howled in a combination of pleasure in triumph.

"What a cock! It splits in me half in the best possible way!" Her hands went to his chest, her claws digging into his pecks. "Now I'm going to ride the shit out of this monster." Mei proceeds to to start moving up and down, faster and faster.

"Oh fuck, Mei! You're so tight!" Logan cried out. His hands went back to her breasts, gripping them roughly in his golden talons.

Mei didn't respond, she was snarling from the sheer pleasure of having such a grand cock inside her. She briefly doubted that a normal succubus could handle it. She grinned broadly at the thought. She liked the idea of only her and Queen Lydia being the only ones who could fully enjoy Logan's body.

"What are you smiling about?" He asked with a teasing smile, a hand grabbing one of her tentacled horns to put her to him. She didn't fight it, not even breaking stride as she continued to violently ride him.

"Just thinking how we may end up ruining each other for normal succubi and incubi," she gritted out.

He chuckled, the sound like a fire smoldering. His other hand latched onto her ass, claws digging in to the blue flesh.

"We'll make do..now come on my cock you beautiful demon slut!"

"Oh I'm going to!" Mei assured, kissing him again quickly before parting. "And so are you! You're going to cum so hard and fill this demonic pussy!"