Trunks solves the Mystery

This is huge so BE WARNED now

I've had this idea floating through my head for years....

WHY do Vegeta and Goku lose their shirts but not their pants... does this transfer to anyone else!

So yeah. my entry for the competition, Trunks, Bra and Pan are the entries since Goten is Goku's clone so he doesn't count.

Dragonball Z/GT Belongs to the Almighty Toriyama-sensei! I didn't create these characters

Top half: Black uniball ink and Adobe Photoshop
Bottom Half: Water colour, Coloured Pencil, Camel and Uniball Black and Red Ink
lettering and bubbles added in Photoshop