Let's take a seat and see how observant Jeff is...

"Well..." Pull out the chair and slide down... "What do you know about those partials?"

"Umm..." He looks so confused... A naked girl right next to him, his eyes too glued on the page to notice... "They're both... parallel to the surface in orthogo..." And now his eyes finally pull themselves away! "Holy fuck! You're -" Hehe! Look at him turn purple! "Fuck..."