"So warmmm...." Jeff's mother moaned, rubbing her legs against Jeff's larger balls lightly. "Need more...." It took a few minutes of silence for Jeff to wonder what she meant by that. There was no way he'd want to produce more semen like this; thankfully, his mother had a different idea in mind. "Need more....in my ass....and mouth..." She licked her lips at this subconscious thought, that would elicit a look of despair from Jeff, if he was normal. Feeling a pain run through the base of his cock body, Jeff notices that both of his testicles detach, leaving behind bare skin. Said bare spots were replaced by nearly regrowing balls, the reverse happened to the detached ones. Each testicle grew another one to make two more pairs, before each growing a whole dick attached to them as well. "What the hell?" Jeff thought, though, he heard this being said multiple instances at the same time. "No way! They're all me!" He shouts, as all three thoughts merge into just one. Jeff now inhabited all 3 of his dick bodies, sharing a sort of hive mind that only had one set of thoughts now instead of three separate ones happening at the same time.
That was only the start of this somewhat horrific change. The other two dicks involuntarily squirmed over Jeff's mother, one moving up past her breasts, and the other moving to her ass. She shifted to her sleeping on her side to make this easier. The one going towards her butt releases an absurd amount of precum to lube up, before shoving itself into her asshole, going so deep so that it's balls were all that was left out. The one going toward her face did the same thing, slipping into her mouth until only it's balls were hanging out. All the dicks immediately started thrusting; the one in her mouth enjoying her automatically sucking and licking it, whilst the one in her ass enjoys the clenching tight muscles. "Shit! It's too much!" Jeff realizes, feeling the pleasure from all 3 dicks at the same time. He couldn't possibly hold back, and releases cum down her throat, in her colon, and her womb. "Don't you all ever leave me..." Jeff's mother tries to say, albeit muffled. "Wait, no!" He shouted, realizing that now he was stuck penetrating all of his mother's holes, effectively making her a depository for his cum. He didn't want this in the slightest, but there was nothing he could do; all his dick bodies cannot leave his mother and would permanently fuck her and cum inside her. Jeff hopes she doesn't sleep talk anymore.