Remember those stories in the old kink meme featuring this ship? Especially the one where Bulma was pregnant with Trunks and they weren't sure who the dad was until he was born? I want a similar scenario, but with the conception of Bra/Bulla instead. They all have a three-way for old-times sake and Bra is the result. Bring all the crack/hilarity/heartwarming moments!

For the story, please go with canon and have Vegeta be the dad.