Fans discovered a little interaction between Yoona and Red Velvet's Seulgi.
Senior Yoona wished Seulgi after MBC Music Festival, after patting her shoulder she patted her butt as well. Fans are totally loving this adorable interaction.
— IntoTheBlue🐹🐯 (@fAiDaRaveE) January 1, 2018
Source : DKPopNews