Liu Mengyu had never considered putting on an act for that young security guard.
If she couldn't curb the threats from that young security guard, Liu Mengyu felt that, sooner or later, she would be played with by him.
As for what Zhao Na was thinking, she had not communicated that to Liu Mengyu; she was unaware Zhao Na was prepared to sacrifice herself to preserve Liu Mengyu's chastity.
So, when Liu Mengyu spoke those words to the young security guard earlier, she seemed especially sincere, not because she was trying to fool him, but simply because she found his thing to be offensively smelly.
"Alright then!" The young security guard immediately stepped forward, placing his thing once again in front of Liu Mengyu, saying, "Using your hand is fine... grip it tight!"
As the young security guard finished speaking, Liu Mengyu's eyes danced flirtatiously, and she looked up at him.
"Oh… fuck! That's fucking skillful!"