Gohan stepped forward, leaned down, positioned himself at her entrance and locked his arms with hers, his mother's, ChiChi's. His manhood was still a little damp from her blowjob, but when it touched the lips of her womanhood, he knew no lubricant would be needed; she was dripping wet.
Gohan's last scrap of self control pulled him back into reality, and seemingly the same had happened to ChiChi. They nervously looked at each other, shame started to fill them up. "I won't do this to you if you don't want it. Because if we go any farther there is no going back mother." ChiChi gulped before responding, " It's too late son. Whatever regrets we have, will be there now regardless of if we go any further." She looked about to cry," but if you can't go through with it, I understand." Before any more words could leave her mouth Gohan slung his right arm around her back and hoisted her to within inches of his face, he placed his left hand against the side of her face and looked directly into her eyes.
"Let me make one thing clear if nothing else today is. I love you. Now and forever." ChiChi blushed and felt a surge of relief and joy. She grabbed onto both sides of his head and kissed him on the lips. He kissed back but in this moment neither of them moved, no make out, just the embrace. There was a peace to it, mutual affection, and more. This was an informal contract, that this wasn't a mistake but rather a commitment to one another, no matter what.
"Who knew my boy had grown up so much?" She smiled as he laid her back down on the bed. He smiled and gazed over her inviting body, he was finally going to become a man, right here. She looked up at him with appreciation, at last a man wanted her, not just food, not even just her body, she was finally, truly, in love.
Gohan placed his penis at the entrance to her vagina and braced for whatever feelings were about to come. Not in his wildest dreams had he imagined this being possible, he was about to consummate his love for ChiChi, his own mother. "Now get to it," the voice said.