Hyomin vs Hyuna, who is sexier?

Recently, T-ara's Hyomin was spotted wearing a blouse of the same design with Troublemaker's Hyuna.

On December 02, T-ara held a press conference at Megabox, COEX in Seoul.to announce the release of new single 'What Do I Do'. At the event, Hyomin wore a sexy pink crop-top showing her lingerie which drew much attention.

This outfit is the same design with Hyuna's during her time promoting Trouble Maker's 'Now'. Hyuna wore a white one in "Now" music video

... and the black one on Ceci magazine:

What do you think about this sexy top? And who is sexier?