Fusion

 Bulchi has been spending time in the Hyperbolic Time Chamber, and are now more than a match for their sons Gotenks when they've been naughty.

In the show, following their disastrous first battle as the fused Gotenks, Goten was infamously spanked by his mother Chi-Chi while Trunks merely got his wounds disinfected by his mother Bulma. Who could discipline both boys in their fused form?

Enter Bulchi, the kinda-sorta-maybe semi-canonical fusion of Bulma and Chi-Chi. They're usually given an outfit similar to their sons', but I chose to put them in Saiyan armor (specifically the older form with the shoulder pads) because I always liked the look of it.