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Goku x Bulma  is the het ship between Son Goku and Bulma in the Dragon Ball series.

Canon
Goku meets Bulma when Goku is still a child. He aids her in her search for the Dragon Balls.

When they meet again, Goku is a young adult during the 23rd World Martial Arts Tournament. Bulma does show some attraction to Goku, but it is superficial.

Fanon
Goku x Bulma is a less popular ship.