During a recent 'V Live' broadcast with fans, TWICE's Nayeon got away with cutely spoiling a big plot twist of SBS's 'The Penthouse' season 2 for Momo!

Check out how the conversation went between Nayeon, who is not watching 'The Penthouse', and Momo, who is an avid fan of the series. 

Nayeon: I think I need to start watching 'The Penthouse'?

Nayeon: I saw a spoiler.

Momo: Don't you dare.

Nayeon: It was daebak.

Nayeon: Bae Ro Na is dead.

Momo: /It's over......./

Nayeon: /smug/

Nayeon: Well it's not certain if she's dead or not. 

Momo: I told you not to spoil it for me.

Momo: /This can't be happening/

Momo: Every time there's a twist in the drama, I feel like my soul is getting healed. 

Momo: You're not even sincerely sorry TT.

Nayeon: Aw... I really am sorry TT.

Nayeon: /still smug/

What do you think of Nayeon's evil deed and Momo's adorable, crestfallen reaction?