Bora and Yewon showed off a 'prime time' photo shoot.

Today, Boom posted on his Twitter, "I was wondering why they were trying to lift the rock but wow! Bora and Yewon, having a photo shoot by the country side. This is better than pictures taken overseas~ Prime time photo shoot" along with pictures.

In the pictures, SISTAR's Bora and Jewelry's Yewon in KBS 2TV "Invincible Youth 2" with Boom can be seen. Bora and Yewon are at first trying to lift a huge rock, but they soon give up and make a sexy pose on the rock, arousing laughter.

Internet users who saw this commented, "Ah! so cute," "They look really close," "So cute," and "You two are too weak to lift the rock."

Photo Credit: Boom Twitter