One of the hottest topics in South Korean forums currently is a new photo of celebrity couple f(x)'s Sulli and Dynamic Duo's Choiza.

The photo is also going viral because it is the first picture of the couple since confirming their relationship, according to South Korean news reports.

Online commenters were abuzz at the rare sighting of the couple looking sweet as they looked at something on Choiza's smartphone, reports The Korea Herald.

The sight of Sulli (Choi Jin Ri) and Choiza (Choi Jae Ho) interacting in a sweet way has only bolstered fan perception that the couple's relationship is getting serious to the point where she might be planning to lay low.

"They've been dating for two years already. Choiza's at marriage age now and Sulli doesn't seem like she cares about her career as a celebrity anymore so they'll probably end up getting married," said one of the top-ranked comments.

Sulli has been inactive from f(x) activities since July last year at the height of the dating rumors surrounding her and Choiza.

The relationship was then confirmed in August 2014, but Sulli continued on with her hiatus, although SM Entertainment denied that she will be leaving the group entirely in the agency's most recent statement in June this year.

Still, there are rumors that Sulli will be leaving the group to focus on acting with f(x) continuing on as four members, likely with a new comeback this September following Girls' Generation promotions.

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Mickey is a writer and digital content creator based in Manila. He is a co-founder of ZAVI App and editor of the small business blog IndieMickey. He has also been bitten by the K-pop fashion bug - follow him on Instagram @mickjami.