Her lipstick marks
Katherine was shocked to discover her red lipstick marks on Adrian's jaws and she was even more embarrassed because it was accidental. She didn't want anyone to notice it, especially her colleague Mrs. Edwin. She wanted to inform him about it but Mrs. Edwin was with them.
She held a tissue with her to erase his jaws but she could not do it as Mrs. Edwin was present with them. She just wanted to inform him about it so he could wipe it off, but she couldn't think of how to do it and there was nothing to find. Her heart skipped a few beats and she almost died of embarrassment, her hands and body were numb.
She was so taken aback that Mrs. Edwin was with them and she was still in her office. She couldn't think about anything else as she stared at his face; she knew his features and she knew that he was beautiful; She blushed when she remembered that she had kissed him, she almost died of embarrassment.