f(x)'s Amber revealed a conversation she had with her SM Entertainment sunbae BoA.

Amber tweeted:

? ?? ???? ?????? ?? ?????.. ?? i woke up at 2 and decided to text boa since its been a while.. oh dear ..@boakwon ?? twitter.com/llama_ajol/sta�

� Amber J. Liu (@llama_ajol) October 15, 2012

The screen capture attached shows Amber's Kakao Talk chat with BoA. Amber messaged BoA, "yo nuna just wanted to text ya saying i miss ya!" The viewers laughed at BoA's unexpected response: "Haha don't say you're drunk.."

After seeing their funny conversation, fans and netizens commented, "Their conversation is so funny", "But why is she calling BoA 'nuna'?", and "The two are both so cute".