Fuck it, let's go for the harem!

He smiled as he came to his decision. He sat up to watch as Darkness continued her blowjob. She glanced up, grinning as she pulled off again, stroking his cock as she lowered her face down to suck on one of his testicles, using her hand to continue stimulating him. "That's a good sex ****," he smiled at her.

"I live to please you Master," Darkness smiled, before sucking his cock back into her mouth, fondling his balls as she kept going.

Soon, he felt his cock throbbing. "Good slut, I'm about to cum!" he groaned. She continued to bob her head, going more frantically. "Pull off, I wanna cum on your face!" he ordered, and she obliged, pulling off and jerking him off as she let her tongue hang out to catch his seed. He grunted as several spurts erupted freely from his manhood, the first one hitting her tongue, and the rest splatting her face.

He panted as she pulled back, smiling as she basked in his seed, wearing it with pride and joy. "Good ****," he smiled.

"Thank you Master," she replied happily.

"You'll be happy to know that I decided to make Aqua and Megumin mine as well," he told her.

"That's wonderful Master!" she eagerly replied.

"Though I won't immediately make them my slaves like I did with you... I'm going to approach them more gradually, and use different methods through the Note to enslave them... Maybe I'll take some other girls too," he remarked.

"Whatever you want!" she grinned as she stood off the bed and he got up, grabbing the Sex Note.