No need to ask Christina Aguilera whether she prefers boxers or briefs. She lets her skivvies shine right through her style!

The actress's most recent violation took place yesterday at the "Burlesque" photocall in Berlin, to which she wore a see-through LBD and matching undergarments.

I'm assuming a sheer sheath is considered conservative in the "Burlesque" world.

Photo: Florian G. Seefried/Getty Images