Look back at the girl in the window

You look back towards the window and see that the girl in the tank top with the long black hair is still looking at you and smiling. When you make eye contact with her she puts one hand on her boob and runs the other down her stomach and out of view below the windowsill. As she does this her eyes flutter closed. Here arm which extends out of view towards her crotch begins to move back and forth at an increasing pace. After a few second of this her mouth opens in a silent moan.

Abruptly her eyes snap open and she immediately makes eye contact with you again. As she does so she raises her hand back into view. Even from here you can see that several of her fingertips are glistening with moisture.

Then she points at you and proceeds to make the motion for jacking off. As she does this she sucks her juices from her fingertips.