On the July 13 installment of K-Star's 'The Friends in Costa Rica,' Eric Nam enjoyed the beautiful country with the younger Sam Kim and Song Yoo Bin.  

While they conversed about Costa Rica, eldest Eric Nam was unable to avoid teasing from the dongsaengs.  First, Eric Nam said, "Really pretty."  As he did not provide a subject, Sam Kim jumped on this with, "What's pretty, who's pretty?" teasing him relentlessly.  Song Yoo Bin jumped on board with, "The women are pretty, right?" hiding his sudden attack behind a bright smile.

SEE ALSO: South Korea has impeached the acting President Han Duck Soo

Taken aback, Eric Nam admitted, "Of course the women in South America are really pretty," then quickly recovered with, "I'm married.  Wifey, you're doing well, right?" toward 'We Got Married' wife, MAMAMOO's Solar.  His dongsaengs jumped on board with this, too, stating to the camera, "Hello, sister-in-law."

How cute are these three?