File is too large to e-mail, you need to pick it up

I send her the text, and wait for her reply. After a few minutes it arrives:

"Oh, really..."

I text back:

"Yes, quite a lot of graphs, pictures, so it is too big for me to be able to attach it to an e-mail."

Millie writes back instantaneously:

"I see..."

Then my phone pings again with another text from "Big Tits Millie":

"And what will happen when I come to your dorm when I come pick it up?"

She knows what is up, I think to myself, but decide to continue to act a bit naive, so I text back:

"Nothing really"

Millie replies:

"Matt, you know I want that term paper you have written for me, what do I have to do to get you to give it to me?"

I guess this is my cue to start being transparent with her.