How does Helen make an entrance?

Needs to be epic. But also funny. And memorable. She's one of the most important characters, the one who incites much of the action of the series. 

In a way, she is sort of summoned By Jake's desire? Or Tim's?

One way I thought of, but seems cliched: Jake compaining there aren't enough hot girls on their hall, to Tim, but while he's saying that, Tim stops paying attention, since he has seen Helen, who has entranced him.

That could work, but doesn't feel very original. Kind of teen comedy-esque. Cheezy.

Maybe I should resurrect the scene from Dotcom Faust? Jake and Tim play "ten women" while in the dining hall having dinner (or at a party?) Tim waits and waits, and just at the last possible moment, Helen walks through and Jake is like "you bastard!"