I'm not sure if this will work, but if it does watch the video and let me know what you see. No hints, and no I'm not talking about the messy desk.
There are four lights!
Silly....Your looking at it wrong is all. It's all in the illusion.
VIew again and look at the grill as the lights pass from left to right. Left fan looks like a drooling big bad wolf and the other to look like boobs!