Figured. I knew she wouldn't be turn on because in reality she was imaging Yeonwu, the only reason she wanted try something new. I feel like she subconsciously remembers yeonwu and that's why she's so drawn to him. That's why she suddenly gets turn on without realizing when she's with him.
Also.. like why is ch12 on here a fan translation when the official is out? It just hasnt been uploaded yet.