The SMTOWN�boys weren't the only ones at the recent Halloween party.�Popular celebrity sisters Girls' Generation's�Jessica and f(x)'s Krystal�also hung out during the label's get-together.

SEE ALSO: SM Entertainment idols have a Halloween party!

Jessica posted the photo above�onto her personal Weibo account. To make up for their lack of costumes, the two sisters seem to have made 'hand masks' instead.�Regardless, their beauty still shone through in the sweet sibling picture. The black-and-white filter gave the picture a nice, elegant touch, making it look like it should be in a photo shoot.

Fans commented, "Pretty Jung sisters," "They're so cute," and more.�

Do you think Jessica and Krystal dressed up later?