In her pussy

Breaking the kiss, she turned around to face her desk. Lifting her skirt, she pulled her panties down to her over her hips and let them fall to her ankles. Looking back over her shoulder, she decided that it was time for him to become her lover. She knew that her soft, warm, wet, inviting pussy was where he always wanted to be. She was already slick thinking about her son finally achieving the desire that had welled deeply within him for a long time.

His eyes fell to her ass as she leaned over the desk, and she knew that he was second guessing what was about to happen, but she also knew these thoughts were conflicting with the ones in his mind that wanted him to do it. He tried to look away, but as he did, Emi watched as her son's eyes fell to the open book on her desk. As his eyes fell to the inscription, Emi watched as his face changed, and in that moment, she knew that he knew that she knew he wanted her. All thoughts of resistance disappeared.

Reaching under her body, she spread herself open for her son. The motion caused his eyes to drop to her opening, and when it did, she saw his cock engorge even more than before. She knew that he was ready to break every societal rule that kept them from being together. Turning her head to look away, she smiled to herself as she felt him approach and use the slick fluids leaking out of her to lubricate himself.

She moaned at the pleasure of his cock as it stroked across her slit. She was dripping, wanting this as much as he did, and she knew could feel the heat of her opening against his cock. She briefly felt the head of him touch her fingers and it caused an electric excitement to course through her body. It was replaced a moment later by a sense of euphoria, like an itch that hadn't been scratched in years, that rushed through her body. Lubricated by her juices, he put weight into this hips and pushed through her opening. She felt him dive into her silky folds with years of desire driving him forward, and she let out a moan of pleasure as his cock filled her completely. She wasn't sure if he was fully inside her, but she filled him completely regardless, and it meant that he was the perfect cock for her, from his length to his girth.

She flinched as he took her so aggressively, but as his cock slid into the silky folds of her interior, she placed both her hands on her desk to prepare her for how aggressive she knew he would be. She felt him place both of his hands on her hips and pull him into her, forcing his cock even farther into her, stretching her insides as the tip of his cock struck the end of her vaginal canal. She let out a scream of pleasure, knowing that it would be undeniable now that she was his woman.

"Akira," she screamed.

"Mother," he moaned in response.

He began to move, slowly at first, causing his cock to slip in and out of her tight folds. Remembering something she'd read a long time ago, she clenched her interior muscles, clamping down on him as tightly as she could. He'd already filled her, something impressive for a woman who'd given birth to two sons naturally, but as she clamped down, she knew he was surprised and impressed with her. She was going to milk all the cum from his cock, and in that moment, their minds linked on this fact. And in that linked moment, she knew that he was planning on forcing his cum as deeply into her womb as he could.

As they both shared the mental realization that she was going to have his seed in her womb, they both began to move. She rocked back against him while he drove himself deeply into her. They both began to moan with the deepest pleasure as they both drove themselves to find the other's pleasure spots. Her heart began racing and her blood pumped. She felt a tingling that ran up her spine and deep into her stomach, a feeling that she'd never felt before in her life. This moment was the most intense sexual feeling she'd ever had, and she knew, deep in her mind, that it was the same for him.

"Aki-" she began.

"Moth-" he said at the same time.

She felt the walls of her vagina crush tightly against him as the orgasm rolled through her whole body. The muscles in her legs gave out and she felt the desk dig painfully into her thighs, but Akira did not stop. He leaned forward and as her orgasm continued, she felt his cock ramming hard against her cervix. Her son was not going to stop until he completely filled her, and that thought drove her more into the orgasm, feeling it roll up her spine, into her neck and across the top of her head. Her whole skin felt electric.