2PM’s Nichkhun recently sat down for a photo with actor Ahn Sung Ki. He shared the photo via his Twitter page and wrote, “Greetings everyone! Here I am with my ‘dad’”.

The idol is seen smiling brightly next to the actor in the photo, and their comfortable pose led fans to comment about how the two looked like father and son.

Meanwhile, Nichkhun and Ahn Sung Ki are both participating in the copyright protection campaign “Good Download,” along with Park Joong Hoon, Jang Hyuck, Lee Min Jung, TVXQ’s Yunho, Wonder Girls’ Sohee, and f(x)’s Sulli.

Source: Nichkhun’s Twitter