You were home alone, while Alhaitham was in the Akademiya. You miss him badly, and also 'sexually' badly, which made you play with yourself using a 'toy vibrator'.

But after a while of that, you hear the door open accompanied with a voice, that you weren't of course expecting.

"I'm home." Alhaitham said closing the door behind him, with a slight smile not noticing your recent actions yet.