7th Doctor Covers
"All you can see are three colours Brigadier.
Gay, Straight, Bi. Red, Blue, Yellow.
The higher evolved beings of the cosmos have gone
long beyond such limited palettes. They can paint
in all the colours of the rainbow and into the
ultra-violet. Where I come from Brigadier, we have
sex in colours that don't even exist."
- 7th Doctor, "Battlefield: Earth"