Akira turns her around

As Akira pulled out, Emi looked over her should her son who had been so aggressively fucking her just moments before. As they locked eyes, she knew what he wanted, so she straightened up and turned around. As she sat back on her desk, she let her panties fall to the floor. Opening her legs, she curled a finger to coax her son over.

Maneuvering close, he placed a hand on her thigh as he used the other to angle himself into her opening. She moaned in pleasure as he pushed the tip of his cock past the folds of her labia. As he got closer, she let her head fall to his shoulder and placed her lips next to his ear.

“Make me your woman, Akira,” she whispered.

Akira moaned and pulled her close to him. She knew that saying this had opened something inside her son because, until now, aside from suspecting that she had secret lovers, there had always been something prudish about his librarian mother. But now she was opening herself like a true slut, and he knew that it was only because she was with him. Only he could turn her into a slut so easily. As he looked down at her and she looked up at him to confirm his suspicions with the smile that told him she would only ever open her legs for him from now on.

Leaning in, they kissed passionately. She felt him prying her mouth with his tongue again, penetrating her in two holes at once. Excitement coursed through her as he was one hole closer to fully dominating her. As if he read her thoughts, one of his hands reached down to grab her ass. As soon as she felt it, Akira slid a finger inside her opening.

With all three of her holes penetrated by her son, Emi felt herself slip into a whole new level submission. Her mind went blank, releasing herself into the moment. She felt the pleasure of her son pumping into every one of her holes at once and letting herself become his flesh tool. Emi realized that in that moment, she was nothing more than his toy, being penetrated by him entirely and completely. She would never be anyone else’s lover again, for in that moment, she knew that no one would be able to match her son ever again.

Her mind flooded back to her suddenly as she realized that an orgasm was coursing through her, originating from everywhere all at once. The three pleasure centers were colliding inside her chest better and fighting for dominance. She quivered, unable to do anything other than shake within her son’s embrace, and she screamed into his mouth.

As she did, she realized that he was also moaning back. She felt the hot spurts of his cum flooding into her and she collapsed into him. Emi invited the feeling, inviting her son into her, knowing that this would be the moment that he would completely own her… and she him.

After the moment passed, they held each other for a long moment, letting their breathing calm and their hearts return to a resting beat. As Akira pulled away from her, his cock fell out of her. She had a brief moment of disappointment as she realized their lovemaking was over, but as she did, she felt the dominant part her mind recede back to where it had always been, with her hidden desires locked away. She no longer knew her son's thoughts and desires, and as she straightened herself up, her eyes fell to the book.

It was still open to the title page, but the inscription and the symbol were gone. There was no writing in the cover and instead, she found herself looking at a regular, first edition copy of “Nami-ko” by Rouka Tokutomi. Somehow, the book had changed, and now she had no evidence for why they'd done what they had done.

“Mother?” Akira said, his voice confused.

Turning to her son, she looked at his face. She had no explanation for him, and she could not hear his thoughts anymore, but she could not deny what she had felt and how much about him she had known. And she couldn’t deny that she had felt something for him for a long time. While she was suddenly disgusted about that she'd taken her son's cock inside her, she was glad they’d finally gotten that out of their system.

As she encouraged him to get himself back together, she knew that when they left the library and returned to the world, there would always be something different between them. She knew they wouldn’t deny their desires again in the future.