The pair were spotted in�Taiwan walking around the airport and a nearby city looking very much like a couple. Even though it's really hot in Taiwan in the summer, the pair�didn't look�like they were bothered by the sweltering heat.

SEE ALSO: Girls' Generation's Sunny travels to Taiwan to film 'Grandpas Over Flowers 2'

Lee Seo Jin previously expressed that he is a huge fan of Sunny and was once fooled into thinking that he was going to go on a vacation with her only to find out it was just a prank for the show - except it's now no longer a prank!

Fans in Taiwan also spotted Sunny riding the subway, holding cutely onto the train pole, looking a little nervous. Are you looking forward to the episodes of 'Grandpas Over Flowers 2'?