アメリカの大学xxx！ -（hdのオリジナル）-ストーリーn。 ＃30

That's Jen and Ash. They're Pie Fis.

And that's Billy. He's a Delta brother.

Billy has a huge cough. It's like a soda can.

Yeah. I guess you will need graphs and limits in this business.

What is so funny here?