A couple of days ago, we reported that the two members of T-ara, Jiyeon and Hyomin, would�guest on KBS Happy Together. The episode aired last Thursday and Hyomin revealed she had�watched porn videos to master her sexy expressions. She said, "Because I wanted to research sexy expressions, I watched adult videos." Hearing this, Jiyeon attacked her, saying, "I learned the sexy concept from Hyomin unnie." Hyomin backed herself up, responding, "Because I am an adult, I can watch many things. I forgot the name, but it was a Japanese video meant for adults. Watching this helped us on making the concept of our new song." Well, this isn't something new as many other celebrities have watched adult material to improve their sexual appearance, but we can see that this helped the group a lot!