You've spoken and so I'll give you two more images of Lamia Lucy wrapped in one image~

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Natsu moaned softly as pleasure continued to suffuse his body. Lucy's coils felt so good wrapped around him, soft scales sliding deliciously against his skin. He could do nothing but nod in blissed out agreement as the lamia whispered sinful promises in his ear. 

"Mmm, Natsu, you're so good for me," Lucy purred, running her fingers through his loosened hair. "I'm going to train you up so perfectly. My sweet obedient little pet to tease and ruin."

Natsu's mind felt hazy, thoughts sluggish and distant. All he could focus on was the dreamy sensation of Lucy's influence. He wanted nothing more than to be her willing plaything, to submit completely to her desires. 

"You're going to be so good to me, right?" Lucy cooed as she tightened her serpentine lower half around him, squeezing just enough to make him gasp. "My darling little Natsu, all mine to use as I want. Doesn't that sound wonderful?"

"Yes..." Natsu moaned. "Anything for you, Lucy. Please, I'll do anything..."

Lucy chuckled wickedly, thoroughly enthralled by Natsu's desperation. She could feel his heart pounding, smell his arousal. Lucy licked her lips, hungering to taste him.

"What a good boy," she praised. "I'm going to take such good care of you, my pet."

Lucy began to undulate her coils in a sensual rhythm, swaying her hips in a way that made Natsu's head spin. He could only let Lucy take him higher, his mind floating in a haze of pleasure, utterly enthralled under her spell.

He was perfectly submissive to Lucy's whims and forever trapped in this bliss.