Is It Right For A Guy To Wash His Girlfriend's Undies?

Hehehehehehe i saw this picture on Facebook after laughing out loud i saved it to show my readers,for love of money or love ,Can you wash your girlfriends undies?
seriously.
Why does it seem so hard for men to do this ,while ladies wash their boyfriends undies,the guys think its juju or a curse.
To all guys:
Did your mother ever tell you that women's underwear will bring you bad luck?