Song Joong Ki and Park Bo Gum
Still of actors Song Joong Ki and Park Bo Gum from Dominos' pizza new campaign. Facebook

After giving a surprise visit to Park Bo Gum's last fan meet in Taiwan on Jan. 23, Song Joong-ki posted another "bromance" photo of his Domino's Pizza commercial co-star on his Instagram account on Tuesday. As expected, the fans went crazy over the post that has gone viral with more than 120,000 likes in two days.

The unusual male bonding between the two close friends has already raised eyebrows for quite some time now. Some fans have also questioned their gender preference. But it seems that the "Descendants of the Sun" actor and the "Love in the Moonlight" star are quite secure in their manhood.

Fans were seen posting comments on Song Joong-ki's page after the picture was posted. A fan, who goes by the account name Jenniferlagunero20, wrote: "Bromance be like".

Another fan, Iklimjr asked: "Why in every your post you're always he ...". This shows that many of his fans have noticed that Song Joong-ki prefers male companionship than female, at least in photo sessions.

The Korea Portal reported that apart from posing with Song Joong-ki, Park Bo Gum is preparing for his next Asian fan meet in Bangkok on Feb. 11 and Singapore on Feb. 18.