Guys: what color undies are the biggest turn on?

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Black, it's just more mature looking.

White?

shit stained white undies! real turn on! :)
But in all seriousness, does it really matter ? if a guy is gonna sleep with a girl he's gonna turn her down because of the color of her undies? Really? I think the real turn on is what's under those undies, he's not just gonna look at your undies and go "oh yeah baby! no, don't take them off[while jerking off]!"

White!

Black..

Yellow. Probably red if you are black.

I thinks its the biggest turn on when the girl isn't wearing any underwear at all! Seriously...try going without underwear and whisper to your guy that you're not wearing anyway...see what his reaction is! ;)

black / pink / red all do it for me.

green / blue / rainbow not so much.

I don't think it matters.

i like girls in rainbow panties because i think of beyond the rainbow

It depends on the woman....a very pale woman would look better in some colors and worse in others....a woman that's really tan would look good in almost any color...

Don't get me wrong I like me some pale ladies :P

purple

I feel like this is barely a thing for most guys, or maybe its just me, and most do have a strong preference

Rainbow because tye-die.

See through so I can see her ass cheeks , ass crack and read her bald cunt lips and cunt hole.

None.

Sheer white with lace on the edges

White. mmm a nice petite white thong with that cutout design across the hips. woof!

Anything but all white!

rainbow is sexy makes me realize my partner is as gay as I am .

I know I'm not a guy and I'm straight but I want to answer anyway. :)
I like wearing black, red, and white. I like laced underwear too in those colors. I like patterns too. Like victorian patterns with lace. It makes a girl look more mature and sexy.