Have Virgo start to blow him.

As Virgo basked in his praise, Natsu turned to Lucy, who gave him a nervous, but happy smile. "Go ahead and sit on the couch and masturbate," Natsu ordered her.

"Y-yes Master..." she said softly, and walked over to her sofa, and sat down. Making sure he could see her folds, she reached down and started to play with them. "Unh..."

He then turned to Virgo, who smiled warmly. "Should I join her Master?"

"Nah, I want you to suck me off instead," he told her with authority.

"Ah, of course Master," she replied, still smiling and sank to her knees. He walked up to her, taking his erection out. She gazed at him, letting a bit of a rosy tint cover her face and began to stroke his shaft, meeting his eyes with her own. They had seemed almost lifeless, robotic even, but he could see the spark of desire in them now.

"Suck," he coaxed her, and she nodded, wrapping her lips around his shaft. She moaned and bobbed her head on it, placing her hands on his hips. After a bit of this, he gently gripped one of her wrists, and guided her hand down to his nuts. Getting the idea, she started to fondle them.

He put his hands on her head and sighed in pleasure. It might have been an accident of sorts, but he was really enjoying his new sexual awareness.