Forum:Did Marcy know FaJ wer in the closet the whole time?

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Did She know F and J were there the whole time in Marcline's closet? Watching the Episode again makes me think she did. She smelled something and kept staring at the closet doors. That bit where she said something like "Im going to record this super privite song that no one should hear." She also went to sleep with her clothes on, kinda odd. Her playing along and making Finn and Jake squirm would be in her playful nature.