Tap on the window and show him your cock
From Create Your Own Story
As Luke stops his work, you decide this is your chance. You tap on the window to get Lukes attention. When he turns, you're standing at the window, hard cock in hand, slowly stroking. You shake your cock at him, sending drops of precum against the window. You give him a sly smile and lick your lips. With your free hand, you caress your own body. You give your nipples a pinch before trailing down to your balls.
Lukes eyes go wide at your show. How does he react?