Hyperdimension Neptunia belongs to Compile Heart, Idea Factory, Sega and whomever else worked on it.

"Neptuna!" Peashy yelled as she ran into the Basilicom and looked around for Neptune. "Neptuna!" She cried out and ran through several rooms, waving at the Basilicom staff, who smiled at her.

"Isn't that Lady Neptune's child from the other world?" One of the members of the staff who didn't know much on the details, but knew that the little blonde girl came from another dimension that Neptune had gotten stuck in for years.

"Hmm? Ah! That's Lady Peashy. She's CPU Yellow Heart," one of the other staff members answered the first one, "she likes running up to Lady Neptune and doing diving headbutts and..."

"NEPTUNA!"

"GAH!"

There was a loud thump and everyone sweat-dropped at that. "Tackling Lady Neptune to the floor."

Everyone nodded and went back to work. Lady Neptune might actually do work once-in-awhile these days, but she didn't do enough so that they could slack off at their jobs.

(-)

"Hahahahahahahaha!" Peashy laughed as she sat on Neptune's stomach as papers were strewn everywhere. "Hi!"

"Urgh..." Neptune groaned in pain. "P-ko, I love ya, but you chose a really lousy time to show up. I was actually going to surprise Histy with getting all my work caught up." She had actually gotten a good chunk done and wondered if Histoire would have a heart attack or not.

Peashy gave her a confused look and jumped off of her. "Who are you and what did you do with Neptuna?!" She yelled while pointing at Neptune, who was sitting up.

"Urgh, I am Neptune, but I saw Histy and the others working really hard the past couple of days and I thought that I should work a little bit so they feel better." Neptune pouted at Peashy. "Sure, I'm a little lazy..." She sweat-dropped as she imagined Noire, Vert and Blanc's faces. "Okay, sometimes lazy..." Her sweat-drops increased as she imagined both her and Plutia's Histoire giving her a blank stare. "A bit lazy..?" Now she was seeing Noire, Vert, Blanc and Rei's faces from the Ultradimension and she sighed. "I give up." She then smiled at Peashy. "So what's up?"

"Um..." Peashy squirmed and turned to the door, running to it and closing it before turning to Neptune and, with a flash of light, turned into Yellow Heart. "Neptuna! I need help!"

"Uh... And you need to go HDD to tell me that?" Neptune asked, but gave Yellow Heart a serious look. "So what's wrong? Is someone in trouble? A bad guy that you need help with? Did you unleash a boss monster?"

Yellow Heart shook her head and her large breasts jiggling from the motions. "Nah uh... Pea... Pea saw something really weird."

Neptune blinked in confusion. "Weird how?"

"Well..." Peashy began.

*Flash*

A few days ago..

"Beru Beru!" Peashy cheered as she ran into Vert's game room, looking for her second favorite Ultradimension CPU. Sure, Blanc and Noire were neat, but they were kind of distant and only wanted to visit Plutia and they never wanted to play with her like Plutia or Vert did. "Huh?" Peashy blinked in confusion. "Did Beru Beru disappear?" She looked around and didn't see anything in the room, save for a computer that was still on. "Huh?" Peashy ran over to the computer, her eyes sparkling as she saw some sort of animated show on the screen and reached for the mouse but found her fingers were too short to reach the mouse. "GRR!" A quick transformation later and Yellow Heart was standing there. "Now!" Yellow Heart smiled and moved the mouse to the play button and hit play.

Yellow Heart grabbed the chair that was out of position and sat her big butt in it and moved in front of the computer. "Whee! Those boys and that girl are... Why are they getting naked? Why is she on her knees? Why did those things the boys have get bigger?" Yellow Heart watched and started to fidget as she felt her body start to warm up and a tingling sensation went up and down her spine and her breasts started to ache. "Um... What should I do?" When she watched the boys grabbing the girl all over, Yellow Heart wondered what she should do. "She says it feels good to touch her boobies, well, I like bouncing mine."

*End Flashback*

Yellow Heart had tears in her eyes. "But my boobies felt really weird and it felt like something was going to make me go "pop" and I got scared and I stopped and turned back into Pea! But every time I turn back into Yellow Heart I feel really tingly and I need new underwear and I don't know what to do, Neptuna!"

Neptune's face was red as steam started to come out of her ears. "Dang it, Vert!" She hissed to herself. "Um... Did you try talking to Vert about this?"

"Pea knows she shouldn't have looked at it! Beru Beru would get mad!" Yellow Heart pouted. "And Blanny and Nowa," she said, remembering Neptune's nicknames for the Lowee and Lastation CPUs, "aren't close to Pea, and I don't think I should ask Ploot."

Neptune sweat-dropped at the idea of Plutia going HDD to explain things to Peashy. 'I hate to say it, but Plutie might take advantage of that situation, tie Pea up and do lewd things to her HDD body.' Not that Neptune didn't understand the appeal. If she hadn't raised the girl since she was in diapers, she might be tempted to try and have fun with Yellow Heart. "That's probably a good idea..." Neptune trailed off. "Um, but why me?"

Yellow Heart was squirming and Neptune grimaced as she could literally SMELL the arousal coming off of Yellow Heart.

"Never mind, you're really bad off." Neptune sighed. "Um... Well... P-Ko, I guess I should explain things to you."

Yellow Heart's eyes started to sparkle. "YAY! Thank you, Neptuna! So how do I make this go away?"

"Well..." Neptune gulped as she began her explanation about what Yellow Heart was feeling, that it was normal and about other things that all parents had to eventually talk to their children about.

Being asked to demonstrate how to masturbate was probably the weirdest thing that Neptune had requested of her in her life.

Neptune mentally cried as she explained things to Yellow Heart. 'DAMN YOU, VERT! THIS IS ALL YOUR FAULT! YOU CORRUPTED MY PURE, INNOCENT P-KO!' She raged to herself.

If I went any further I'd have to raise the rating of this to M.

Poor Neptune, having to give Peashy "The Talk". XD

Been wanting to do this for awhile, actually.