Disclaimer: I don't own DragonBallZ nor anything related to it.
It was another day at Vegeta-sei...slaves would wake up as dawn break, work till sun would set, the King would take care of the planet's affairs as always while his son – Prince Vegeta, who was five at that moment would train hard, maybe pass out from exhaustion only to please his father who wouldn't stop saying 'You will be a Super Saiyan, you ought to be, it's your duty. I refuse to have a weakling as a son." Then Vegeta wouldn't stop thinking about achieving this goal, his father's goal, even if he had to sacrifice his own wishes.
"My only wish is to become a Super Sayan."
The castle which was huge held many rooms, even torture rooms for those who went against any of Vegeta-sei's laws, so of course they needed to have lots of people working , of course they wouldn't pay for that. That's why saiyans would go to other planets purge them , then retrieve people and make them their slaves.
Slaves didn't have any rights, apart from a room and some food to eat during the day. They wouldn't be able to mate sayans let alone have their children; slaves were considered dirty people, worse than animals, even though some managed to escape from these harsh laws, some people such as Bulma, Bulma Briefs.
Bulma was a young girl who came from planet Earth, together with her friend Chichi, both were almost the same age as Prince Vegeta himself; sometimes Bulma would sneak out and try and make Vegeta play with her, a thing she never did achieve.
Bulma would always be glued to Nana, an old woman who had been taking care of Vegeta since he was an infant , telling him news on the castle, taking care of his torn clothes and when he was a child, even changing his dirty diapers.
Bulma and Chichi were common slaves, the ones who would stay at the kitchen to cook, or at the laundry to wash sayan's clothing, or do whichever work required around the castle. Bulma that had a thing for Vegeta would always volunteer herself to try and help Nana regarding his affairs, if she had to tell him something she would jump up and run to his room so she could tell him, and no matter what she would never forget the once great relationship she had with him when both were still small children; she would never forget Chichi and herself watching little Goku (who was a low class sayan guard) train with Vegeta; she would cheer them up and after their little battle try and make Vegeta play with them as normal children did, but to no use since Vegeta had too much pride to do 'stupid things' with them as he so commonly put it, back then
As they grew up they broke their once great relations, so now only Goku would go and train with him, and the more Bulma tried to be near him the colder he would become towards her. King Vegeta wouldn't allow Vegeta near slaves, and as time went by, Vegeta himself would only become more and more spiteful, just like his father wanted him to be. Not even Nana herself could believe the kind of person her once little Vegeta, was becoming, but still Bulma wouldn't give him up just yet, at least her heart wouldn't.
The sun wasn't even up yet as the slaves were already doing chores in the castle, Bulma was requested to go into Vegeta's room and retrieve some dirt clothes and put clean ones in his wardrobe. She knocked, no answer, she knocked again, still no answer, so she decided to enter in his room, even without permission.
"Vegeta ?", she just wouldn't call him prince or any other title.
As she heard no reply she went to accomplish her chores since he seemed to be taking a shower. She then took some of his dirt clothing, that by the way were everywhere, then put on some new train suits on his wardrobe, followed by some new fluffy towels, not didn't even paying attention that the sound of water running at his bathroom was long gone.
She was there humming to herself while organizing his wardrobe when she suddenly felt a presence beside her, she then looked up only to find an angry looking naked Vegeta observing her every move. As slaves couldn't hold eye contact with sayans let alone their prince unless they wanted to be slapped hard on the face, Bulma decided to look down – not a wise choice since her eyes were exactly in front of a male part that wasn't the one she expected to see right now. Bulma then not to blush any further decided to break the laws and look directly at the prince's eyes (not that it was the first time she did that, since she was a hot-head herself and thought those laws were bullshit).
"What are you doing here ?", he looked at her coldly.
"I was only going to put these things away and retrieve your clothes , so I could...", she started to speak stuttering a little, all the while getting more and more ashamed.
"Enough !", Vegeta commanded.
Bulma then took a fast bow and went straight out of his room, only to blush even more as she remembered what she did see. After all her first and only crush was far, far away from finished.
Ever since Bulma was a small girl she would daydream about Vegeta and about being a princess herself. When she still managed to make him hold a decent conversation and still could talk him into playing some girly game with her (anything besides train was a girly thing for small Vegeta), she would only make the feeling grow bigger and bigger. One day they were laying on the grass looking at the red Skies of Vegeta-sei in a rare moment Vegeta wouldn't be training nor complaining about any random thing and Bulma always her touchy self as a dreamy small girl, who reached out and touched Vegeta's hand. To her surprise he didn't flinch away.
"Vegeta.", Bulma said softly.
"What?", he spat back.
"Promise me one day, when we grow up, you will make me your princess.", she asked innocently.
"Hmph", was his only reply.
From that day on Bulma just couldn't forget that promise of eternal love. Little did she know that small promise wasn't even supposed to be done, let alone happen.