Kattie sat on the floor momentarily stunned by what just happened. Her newly enlarged cock was still semi erect and laying against her chest with its head just short of where her breasts would be. "Does it feel that good all the time" said Kattie. "Yes and sometimes better" replied Ruby. Kattie got up and was about to leave when she remembered about her brother. He was still bent over his bed with his now very perky butt presented to who ever walked in. "How long is he going to be like this" asked Kattie. "He should have been free from my compulsion a few minutes ago. You should roll him over and see what is happening" answered Ruby.
Jake was feeling terribly conflicted at the moment. He had just been forced to expose himself to his sister bend over onto his bed and let her use a huge cock that had no place being on a little girl like Kattie to fuck him. He had also been changed somehow to have a larger butt and wider hips not to mention the loses of about 4 inches in length off his own cock, and yet he had never felt more pleasure in his life.
Jake heard his sister talking to her self and then heard her walking towards him. Before Jake could react Kattie had graded one of his legs and used it to turn him onto his back where he looked right into his sister eyes. He blushed and tried to turn away but his body was still drained from the events that had just transpired a few minutes ago. "Jake are you ok" Said Kattie still holding one of his legs. Jake didn't answer he could not think of anything to say. "Jake does you belly hurt it looks big" . Continued Kattie talking to her self as much as to Jake. After hearing that Jake looked down at his stomach and was shocked. His midsection was severely distended looking like he had somehow eaten a cantaloupe whole. Panicking slightly he brought his hands to touch his belly to feel if there was anything wrong. When his hands came into contact with his belly he felt a soft resistanse and could almost hear the sloshing of what must be Kattie's sperm in there. He continued to rub his stomach which reminded him of a water balloon. Kattie who had been silent for a while put her hands on his belly and asked "does this feel good". Jake was not sure what to say but he felt compelled to say in an almost inaudible voice "yes".
"If he like that he will love this" said Ruby into Kattie's mind. Kattie focused onto Jake as she witnessed his hips and butt expanded further while his belly deflated. She also noticed that his nipples started to poke through his shirt. "what's happening" said Jake as he felt a euphoric feeling sweep over his body as it changed. "The boy has just got an upgrade to his femininity, and as an added bonus I gave him a womb that is attached through his anus" Answered Ruby. "If you want to get him pregnant you can, but you should suck his dick a little before you try". Continued Ruby. Kattie being the youngest child had not seen her mother pregnant and wanted to see what that looked like. Before Jake could protest she got on her knees and put the two inches that were left of his penis into her mouth. Jake started to moan feeling pleasure coming from all over his body and without meaning to his hands came up to his nipples and he started to squeeze them. Kattie ministrations on his cock had only just begun but he was already cumming, only he was not stopping. Kattie continued to suck his constantly spewing dick and swallowing his sperm when she started to feel odd in her crotch. A minute and a half after Jake had started to cum his cock finally stopped leaving him feeling empty. Kattie stood up and inspected the results of what she had just done. The first thing she noticed was that Jake's balls now matched his cock and were tiny marbles next to his baby carrot cock. The second thing she noticed was that her own balls were large the size of apricots. "Jake, Ruby says that you can become pregnant now. Can I fill you up and see". Almost every part of Jake's brain was yelling at him to say no but there was one ever growing part that said that he needed to be filled again that he was too empty now. That part of his brain won out and he nodded to Kattie.
Kattie was so hard right now thinking about what she was going to do that she was leaking precum to form a slow stream of sexual fluids running down her huge cock. She lined herself up with his little donut shaped asshole and plunged in. This time around the pressure on her cock felt very different with his butt seeming to try to squeeze down on the intruder to try and bring forth the nectar of its desire. After she had gotten about two thirds of her length in she could see a slight bulge in his belly when she thrusted into him. Jake had pulled his legs back to allow her deeper access and had started to quietly say "fill me, make my belly big, let my butt feel those huge balls". It wasn't long after he said the last thing that Kattie was able to comply with a slap as she bottomed out and her balls slapped his soft rear. The bulge of her cock on this stomach was now quite noticeable and one of Jake's hands found its way onto that bulge and begun to massage it. Both Kattie and Jake were close to there limits and to make sure he got all that he could from Kattie he looped his legs behind her and pulled her into him hard. That was the final straw and she let loose inside of him. The were both openly moaning as Jake's stomach was slowly inflating. When he reached the size of a football Kattie had blown her last load. Kattie was not sure what would happen now but she knew things couldn't got back to how things were before.