On this week's episode of 90210, the whole group responds to Navid and Adrianna's wedding plans by throwing them parties. We already caught a glimpse of the wedding/baby shower, where everyone looks all happy and sweet — but lots of drama was to come. Like pill popping! And drunkenness!

We also learn more about Liam, who is potentially caught up in illegal activities (and yet still lectures everyone about everything all the time), and get to know Naomi's big sister a little better. And by "get to know" I mean "watch her have sexy time with Ryan."

Sometimes words alone aren't enough to convey this show's funniest/weirdest/most dramatic scenes, so I've grabbed some of my favorite clips from this episode. To watch and discuss, just read more.

Hey, look at that! The gang hangs out together at lunch now! I think the show is much better when everyone is friends with each other, even though there really isn't an explanation of how that came to be. Anyhoo, here's Adrianna and Navid delivering their big wedding news. Check out Naomi's totally '90s headband and Annie's braids. Something about these hairstyles strikes me as odd:

Ryan runs into Naomi's sister at the Peach Pit (really? she hangs out at the Peach Pit?), and they flirt, and he tells her he is a writer. Then we get to watch Ryan be a writer. Did you catch what he was typing up on his laptop? The story is called "The Vermilion Steed" (ha!) and it appears to be about a teacher who likes the guidance counselor who is always tossing her platinum hair. Check it out:

Finally, here's Navid stripping for the guys. Just kidding — he was helping out a sorority sister whom they ran into at a strip club, natch. Hilariously, once Navid and his friend end their performance, a ventriloquist takes the stage.

What did you all think of this episode?

Photos courtesy of The CW