He is your boss and all of workers have dinner including you and him. He flirt back with your co worker when he sees you looking and grins when he sees you intently looking at him

You then excuse yourself to go to washroom area and he sees you so he follows you and wait for you to go outside the washroom

You're shock when you see him, as he grins and comes closer to you pinning you to the wall and looks intensely at you "I saw you looking, so pause i think.. iv'e made you blush"