AnnaLynne McCord AnnaLynne McCord

Yes, college normally means harder course loads and lots of studying. However, it looks like West Bev High grad and college freshman Naomi Clarke (AnnaLynne McCord) is going to be doing anything but on the new season of 90210.

As revealed in the Season 3 finale, she's preggers and yet we see in this preview that she's also strolling across the quad in just her undies (a sorority hazing ritual pushed too far, perhaps?) and getting arrested! Don't the campus police know orange is so not her color?

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And Naomi isn't the only one keeping things exciting in the 90210 zip code, as Liam (Matt Lanter) comes back from his summer abroad with a very important question to ask Annie (Shenae Grimes).

Watch the full Season 4 preview here:

90210 returns Tuesday, Sept. 13 at 8/7c on The CW.

Are you excited to see the West Bev kids go to college?