well you will find here Vegeta and Bulma's fanfiction (dah)!I like the story of how it all began between those too, so i guess you'll see a lot of "Vegeta and Bulma get together" but i also like Alternate Universe story. If you think there is a story good enough to be post here, e-mail me!Be warned, all of the stories here are for adult at least most of them. Good reading!
The best alternate universe story i say is "World enough and time" It's an alternate universere where Earth is destroyed with no hope of wishing it back. The sole human survivor is of course, Bulma, who his taken under Radditz wings.Afterward, Bulma arrives on a planet where she meet a very different Vegeta No ouji, the only hope of destroying Frieza. Passion flare between the Saiya-jins and the human. Excellent piece of fanfiction!
The red dragon Tetralogy
This one is excellent too. Lisalu actually created a whole new univers in this long stories. There is too much information, words, too much content too, do a good summary you just have to read it yourself.
A glad day
Another alternate universe (aren't they all are?)Bulma is taken on Vegita-sei as a slave. This fanfic is rather dark,bloody and with a bit of taboo content and more importantly it's extremely well written. The pain ,both mentally and physically, that the caracters suffer is so intense that just by reading it you almost feel it!
The Ginyu quad attacked Earth, taking Bulma as a sex slave, she end up in the cell of a very weak Vegeta, where they make an alliance to save themselves. A good read! Well written again.
Awww this one is cute, i just read it cuz i didn,t remember it! All short and sweet, the end made me laugh! Vegeta shows up in Bulma's room where he transforms into a Super Saiya-jins.