No, this is not a R scene. According to Lynn's blog...
Initially, Gaew Gao (Aerin) wanted to drug Nop (New) and Namphet and create a scene of misunderstanding for Chewin. You know, to make Chewin think Nop and Namphet “wink wink”. I know, Gaew Gao is crazy. She slipped sleeping pills in Nop’s wine glass and left. Luckily, Nop realized what she did and switched the drink with Chewin. After Chewin passes out, he created a scene of misunderstanding for Gaew Gao. HAHA. I love Nop.
When Namphet woke up from her slumber, she found herself naked beside Chewin. AHHHHHH!!! She immediately pushed him off the bed and probably screamed her heart out.