Let's double down on the front side...

Fuck, I am so fucking horny, haha, this is a terrible idea... Fuck it!

"Because I was thinking..." I'll just lean back and look off into the distance, like I'm really pondering... Thighs still under the desk, hiding everything else, but just barely...

"If you took the partial derivative..." Let's just fondle along down to that next button, totally **** behavior here... Mmm... Fuck, it feels nice to run a finger along the side of my breast...

"Like, in each direction..." Oh fuck, that was my nipple, pay attention! I'm not using my breast to illustrate partial derivatives in two dimensions right now, I'm stripping! Getting off comes later!

Grip the button and... "The results should be two vectors tangent to the surface, right?" *Pop!*