What colour underwear do you find the most sexy

Electric blue

Yellow, bright blue, pink pretty much any bright electric colors.

Pink or red

red, black, white and pink?

Red for me.

Black.

In this order, red, black, white!

Has to be the classic black for me, although I do like blue too. Either for me or my partner. ;)

Black, then purple.

Black

Red, blue, black, pink, and white

Black.
Then you can't see the skid marks. 😇

All colours & mixtures

White!

Black. Can never go wrong with that.