"Okay, here we go." Jenny said triumphantly as she finished the last details. "One thing about this one, I just transform into this one thing, but I do still want to become your dick after we're done having fun. It feels like its tradition at this point." She couldn't stop herself from giggling as she said it. "But that does mean that you have to manually do that, but you can decide however long it shall be, or how it should work. I just ask that I also become your balls this time around."
Jeff leaned over to see the screen, but Jenny was fast enough to shield it from view. "Aww, just a peak."
Jenny shook her head.
"Also, what if I want you to be one permanently?" Jeff then asked.
"Then I'll just demand that you find a girlfriend who likes taking dick in all the holes." Jenny replied bluntly. "Oh, and alter reality to make it so I believe I had always been your sentient dick, and yes, reality alter is actually an option."
Jeff thought about the scenario for a moment. "But wouldn't it be a more helpless situation if everyone but you believes that you've always been my dick?"
Jenny turned red at the idea. "Yeah, me trapped forever as your cock and balls, no one knowing the truth. Though I do still want to be able to hear and to speak. Nothing else though. That is for my general request, by the way, not for this idea specifically." She then did a quick move and pushed Jeff away. "Now, let me activate this in peace."
Jeff stood back as he saw Jenny press 'accept' and went a menu backwards. She then jumped on his bed and started giggling. "Oh, you're gonna love this."
It took a moment, but then he saw Jenny's breasts start to expand until they became the approximate size as they had when she was the fuck torso. "I hope there is more to it than that."
"There is." Jenny couldn't stop giggling, her giant breasts jiggling by the rapid chest compression.
Then below something started to form, and below that, something similar. They grew larger and larger, rounder and rounder until it was clear that it was another two rows of breasts.
"This looks like tit fucking material. I thought you weren't a fan." Jeff looked as Jenny's new breasts reached the same size as her originals.
"I did say that we could do it if you wanted to, though." She had a hard time stringing a full sentence together through all her giggling. "Besides, there is much more to come."
Next up, all six breasts started to part from one another as a third tit in each row started to grow until they too shared the size with their companions. "Oooh, they're getting heavy." Jenny said as she straightened herself from the weight.
Following that more markings appeared on her sides which also started turning into large tits, Jenny being forced to raise her arms to accommodate the upper ones on either side. With that she had a top row of three breasts and two lower rows with five each.
"Let us get some balance, what say you?" Jenny looked with a lustful gaze at Jeff's fully erected penis as she could feel nine growths starting to form on her back. "You seem to really enjoy it."
Jeff shifted his view between his transforming girlfriend and his throbbing dick, so hard that it hurt. He decided that there was only one thing to do and started masturbating as the nine tits on Jenny's back reached their final size.
"So heavy... But I'm not done yet." Jenny readjusted herself as her arms and legs started to get sucked towards her, thighs and shoulders expanding as her fingers and toes fused, leaving small discolored nubs at the very end until they was consumed by the shoulder and thigh orbs, becoming nipples for those newly formed breasts. "This feels so good. I didn't even adjust my sensitivity, but all these nipples are just..." She trailed off as she moaned. "So many forms to compete for being the best." Another moan left her mouth. Then a louder one came as a tit with her pussy on it emerged from between her thigh tits. "Sex is still required." she said as the pussy tit settled. "Think how good it will feel along with the softness of my milkers."
She then wobbled forwards as her ass expanded, nipples forming on the center of each, as a third tit appeared from in between, Jeff barely managing to see her asshole turn into another pussy.
"Sorry, hun, but no anal for this." She glanced at Jeff, a large puddle of cum in between him and the bed, but his dick still rock hard.
Jenny wobbled a bit before nodding. "Okay, I'm done."
Jeff went to the bed and placed her in a standing position. She now had three layers of eight tits around her torso and another six that was her entire lower body. Jeff stared at her for a long time, mouth wide open.
"I'm a titty raspberry." Jenny said with a laugh. "Now start grope these babies and suck all my magnificent nipples. Motorboat me, titfuck me, just fucking fuck me, this is just incredible!"