"Hmmm... You can speak again" Lilith mocked Jeff as his body was still frozen but he could talk now.
"LILITH! Delete this nonsense and return things to normal!" Jeff angrily yelled.
"And why would I want that?" She grinned as she started to walk around Jeff. "My parents always paid more attention to you than me, you have a big social life and a girlfriend..." she looked away for a moment, seeming like she was a little disappointed with everything, "but now with this powers I not only can rule the world... I can shape reality as my like and no one can stop me! The first thing I need to get rid of is you and I have the perfect idea" she regained her evil laugh once again about to execute her plan.
"STOP YOU SICKO, RETURN YOURSELF TO NORMAL AND LET ME FREE AGAIN!" her twin yelled in a mix of anger and anxiety, really worried of what Lilith's twisted and evil mind could do to him and the rest of the world.
"You're annoying me again, maybe giving you back your sense of talking was a bad idea, but I don't worry, you won't have it in a little while hehe" she said as Jeff looked at her in confusion of what she actually meant.
Suddenly Jeff realized that his clothes felt a little loose. Then he felt for sure like he was shrinking! his clothing felt very light and almost nonexistent, then they just slowly disappeared leaving him completely naked. "HEY!" Jeff blushed from embarrassment. However, he continued to shrink. Then he noticed that his muscles seemed to be shrinking as well, and his hair was receding on his body.
"Are you... Making me YOUNGER!?" Jeff, currently a kid said. Lilith just smiled as she began to grow as he shrank.
"Being more specific, a baby... MY baby!" Lilith giggled, noticing how her shadow began to cover Jeff, her facial features got more mature, quickly going from a 17 year old girl to a woman in her mid twenties.
Jeff continued to lose height and now was eye level to Lilith's stomach. His butt became baby smooth. Then, he felt a stirring in his penis and looked down to see that his pubic hairs vanished as his balls pulled up against his body as his once proud manhood went totally limp and shrank back to that of a little boy's. Now very embarrassed, Jeff's face went even more red, desperately wanting to cover his lower parts if he could move his body at will, he also wanted to scream at Lilith but at that point he wasn't capable of forming words.
"Aww, don't worry little boy. I think its VERY cute!" Lilith said laughing while continuing to grow and her clothes were torn. "I need to fix this too."
Jeff's legs gave way, the muscles becoming weak. His hair receded, leaving him with a soft bald pate. His teeth sucked back into his skull, leaving only gums that worked the air frantically. His high pitched cries turned into a low gurgling as his tongue no longer formed the words that it was used to.
In moments, Lilith's crotch bush got hairier as her breasts ballooned out to a E-cup size, this time her shirt became stained with small, wet smears. "Oops," she said mockingly with a now mature and sensual voice, "I think I exaggerated a little with this one, Oh, well." She chucked as she finished to develop into a thirty year old woman. "Well, mom always expected us to give her grandchildren, she didn't specify the way!" she smiled at Jeff's baby sized face.
Lilith knelt down next to her former brother with a smile stretched across her face. One finger snaked out to tickle at his chin as her other hand rubbed his back. "A precious little six-month old Jeff~" She leaned in close, pressing her face against his. She dotted his face with little smooching kisses. "I have to say that you're sooooo much cuter this way! Of course, it's going to be tough being a single mom at my age, well, I'm physically 37 now, but you know what I mean, we're the only ones who know the truth!" Lilith giggled again, more than satisfied with her change.
"I think I'll be able to manage so long as I have this program." She glanced back to the computer as she lifted Jeff off the floor. "Speaking of which, you must be hungry. Let mommy feed you..." Lilith lifted up her only shirt that almost ripped apart with her grow and pulled down to reveal her breasts that had just begun to leak milk as she wasn't wearing any bra. She pressed Jeff's face in close, but her former brother just wouldn't latch on. "Come on, you have to eat, baby..." There was another brief moment of struggle, but soon Lilith had slid her nipple into the baby Jeff's mouth. She watched in joy as he started to suckle. "Hehe, I know you're still there with your intact mind but you can't battle against your baby instincts", she chuckled with her new mature voice.
"I could make you forget about your life and make you and everyone think that you've always been my child, but letting you keep your thoughts sounds tempting too, I am not done with you..." Jeff kept sucking as he couldn't resist the feeling of wanting breast milk, but he also couldn't ignore the fear of the rest of things Lilith wanted to do, such a bizarre situation of him being breastfeed by her now thirty-something sister that was her twin some minutes ago. "Don't worry, I will discipline you to be a way better man that you were before!" she mischievously laughed again like a villain while enjoying the feel of getting her boobs sucked, thinking on what to do with Jeff, herself, her parents or even the rest of the world.