Actually, it has fanfiction origins. A forum I used to visit (no longer existing on account of deletion) developed a fanfiction writing method where the writer would post the basic premise, and then other board members would fill out a criteria-based application to fill out the cast, although the actual writer would usually provide the central protagonist and/or antagonist.Izoon said:"Tastes just like Raisins"?Kimarous said:where my "stock" name is Raisin (don't ask).
In any case, it wasn't uncommon for at least one of my applications for these various fics to be (at least based on) "Kimarous". In one Dragonball fic, I figured that I'd go with a food pun much like a lot of DBZ characters, and a female one at that; thus, "Raisin" was born. In the next fic that was made, I proposed that the characters of Kimarous and Raisin be a couple in-story. This became a trend over time until I finally decided to make her "canon" as Kimarous's love interest.