As your mother finished her chores, you had cum inside her a total of 8 times. By now, her womb was pumped full of your cum and with you plugging her up, it was going to stay in there. 'Crap; what will happened to her? Can she get pregnant like this? What will dad think?!' You worry, feeling your mother sit down. Spreading her legs, she rubs your balls sticking out of her through her shorts. "Mmmm, this is fucking great. I'd keep you in there all the time, if I could." She passionately states. 'Oh crud.' Was all you think, as she kills time by just sitting there and relishing the pleasure you've been providing. Of course, this ends up running through the end of your transformation. You feel your body heating up and expanding outwards slowly. From the stump at the end of your genital body, your original self starts to grow back. In less than a minute, your whole body is back to normal; your legs are wrapped around your mother, arms behind her back, face between her sweaty breasts, and dick still deep in her cum filled pussy. All of this completed, by you sharing her clothing as well; unable to pull out, you sigh.
"OMFG, honey!" She cries out, standing up. "What are you....what has happ-" She desperately tries to make sense of the situation, then reaches the realization. "No way; I've been having sex with you this whole time!" Unsure of what to do, you give a thrust to prove her right. "No wonder it felt so good....." She moaned, this being an answer you didn't expect. "Only a true man gets to screw me; and I guess that means you." "Wait, you're not scared? I've been ejaculating in you constantly. What if you get pregnant?" You inquire, wanting a sane response. "Meh, who cares. It felt so good, I don't want you to take this pleasure from me. Keep going!" Your mother licks her lips and forcefully grabs your ass, enticing you to go hard. "And don't pull out. I want to make sure only your dick ever goes in there from now on!"