While you were cryin' your eyes out at Grey's Anatomy last night, Hills stars Stephanie Pratt and Lo Bosworth were giggling up a storm at the Undrest Pop Shop opening in L.A (or, the "undrest undie party," as Lo nicknamed it on Twitter).

Hangin' out together for the second straight night, (Wednesday was all about Maxim and micro-minis!), Lophanie surveyed the sexy underthings then got all Agent Provocateur in lacy black gloves and silky blindfolds. Check out these pix of the ladies scopin' out lingerie, then stick around and admire their pre-panty party poses, after the jump.

We already saw Kristin get the best of Jayde on Tuesday night's 'I'm With Brody!' showdown. But who's got the edge in terms of style? After spotting both girls rockin' the hottest trend of the season (hint: it rhymes with shmannel!), we thought we'd give 'em a chance to battle it out in an RC fashion faceoff! Think K-Cav deserves snaps for her low-key look? Or are you more into Jayde's fancy spin? Take a look, then tell us who was workin' it in plaid!

Heidi nearly ripped her hubby's head off when she found out he'd planned to go in for a vasectomy without even giving her a heads-up. 'Course, time heals all wounds, so it probsies won't be long before she and Spencer can look back and laugh about the time he almost got his tubes tied ... right? Wrong.

Turns out, Mrs. Pratt's still pretty bent outta shape about her spouse's major betrayal of trust. And since open communication is the foundation of every relationship, she's decided to show him the dangers of lying by omission (i.e. by getting herself knocked up before Spencer even knows what hit him).

Watch as Heidi tries to turn her husband into a human sperm donor while Jayde decides it's time she and Kristin had another friendly little chat about the Brodester. Plus, find out what Jayde's been telling Brody behind K-Cav's back (and why Justin's still leaving Kristin voicemails!) on next week's all-new/extra scandy edition of The Hills.

Not to sound like a total prude -- or, worse, our mom and dad! -- but when we first saw these pics of The Hills' Lauren Conrad (from last night's Maxim party), we actually wondered if she'd forgotten to wear pants. Then we checked out Stephanie Pratt and Lo Bosworth's frocks and realized not ONE of their glittery getups even reached mid-thigh!

Okay, so obvs, the girls look fab (we heart their shimmers and sparkles and ruffles!) but just LOOKING at these outfits gave us a mini panic attack. And as we imagined all the things that could go wrong (what if they dropped something? what if they had to walk up stairs??) we started wondering whether this rapidly disappearing dress trend's finally getting out of hand.

Are you guys ready to lop another six inches off your fave designer dresses? Or do you prefer a (slightly) less leggy look? Take the poll and tell us how short is too short!

Kristin Cavallari doesn't seem to regret kicking Justin Bobby to the curb. Instead of waiting by the phone for him to call (or send another hilarious joke text), she was out at da club, canoodling with Brody Jenner ... and getting into it with Jayde and her Playboy posse. And since she and Audrina Patridge aren't exactly besties these days ('member the birthday blowout?) K-Cav sez she found out about 'Drina getting dumped the same way the rest of us did: by watching last night's Hills!

So what was it like seeing her Hills rival get her heart broken? Last night, Kristin dropped by the After Show (via satellite) to discuss Justin's breakup bombshell, settle the Speidi score and let her fans know revenge isn't always sweet. Check it out -- then tell us whether you think K-Cav's giving it to us straight!

+ Watch the rest of The Hills: Live After Show, plus take our poll and help us decide whether Kristin's in it for love -- or for the drama!

Nothing against upper-eastsiders, vampires and serial killers, but we're hoping that catfights and hookups reign supreme Jan. 6 at the People's Choice Awards. The Hills is up against four top-notch shows (Gossip Girl, True Blood, Dexter and The Secret Life of the American Teenager) in a fight to take the Favorite TV Obsession category -- and our L.A. drama queens need YOUR help to win.

Deny it all you want to your History Channel-loving friends -- we know you're still faithfully watching The Hills (thanks to a little thing called ratings). So say it loud, say it proud: "I'm obsessed with The Hills!" Or just head over to the secret ballot at PeoplesChoice.com to cast your vote. K-Cav thanks you kindly.

You already know Kristin Cavallari and Audrina Patridge have the same taste in guys (Justin Bobby, Brody Jenner, anyone in a leather jacket), but did you know they're also on the exact same wavelength when it comes to accessories? Yesterday, both Hillzies hit the streets of West Hollywood in sporty ensembles -- shades, leggings, comfy tops -- and smiled big for photogs while juggling their keys, cellies and oversized bottles of H20!

Take a look at these L.A. ladies getting some much-needed hydration (water ... it's so hot right now!), and tell us who's got the best shot of landing the new (fictional, but totally plausible!) "Got Agua?" campaign. Bottoms up, girls!

We usually put these precious Hills matters to a poll (cuz what do we know about relationships -- or throwing down with Playboy Playmates -- anyway?), but we're not even gonna bother asking y'all who won tonight's catfight at da club. No doubt about it, Kristin Cavallari proved who's boss when she left the scene of the crime with her dignity (mostly) in tact -- and more importantly, Brody by her side. Hey, the girl that gets the guy is ALWAYS the clear winner, it's that simple.

Only time will tell whether Jayde can scheme romance her way back into Brody's pants heart (he says 'hells to the no' right now), but in the meantime, we wanted to offer up a huge congrats to K-Cav for playing the Two Girls/One Confused Bro game like a true pro -- and landing the prize with even his mother's approval. Job well done, Kristin! We hope to see you and Brody hooking up on the beach, officially getting back together over candlelit dinner, bickering about babies/vasectomies and breaking up to the tune of deafening dance music by the end of the season.

Two weeks ago, Justin Bobby told Audrina Patridge he'd never find anyone as good as her. So you can imagine the surprise (and yes, the humiliation) she must've felt tonight, when JB told her he was still too hung up on Kristin to even THINK about getting back together with Audrina.

Wait, hold up a sec -- Kristin? As in Cavallari? As in the no-strings-attached chick who dated Justin a handful of times, bitched him out over a text, then seemingly dumped his ass for Brody? Yep, according to JB, those three weeks of noncommittal bliss meant more than his four (or five) year love affair with Audrina. Or at least that's what he wants her to think.

Our take? Justin had second thoughts after his emotional outpouring with Audrina (as guys are wont to do), but instead of being honest about it, he decided to pin the whole thing on her, as though she'd completely misread all the signals. And while we understand the change of heart -- without Kristin, the grass-is-greener philosophy doesn't exactly fly -- we think he could've softened the blow a bit (or at least pretended to care) when Audrina told him she wanted to give it another go as a couple.

+ Think Justin deliberately led Audrina on, only to break her heart for the umpteenth time? Or is he just an immature jerk who (still) doesn't know what he wants? Take the poll and tell us whether you think JB is a bad boyfriend -- or an all-around bad guy.

First, she battled it out with Lauren Conrad over Stephen Colletti. Then, she waged war with Audrina Patridge over Justin Bobby. Now, she's pushing Jayde Nicole's buttons (and getting pushed around by Playmates) over Brody Jenner. So what's Kristin Cavallari's deal, anyway? Is she always picking the wrong men? Or is she just more interested in the chase (or, in her case, the catfight) than the dudes themselves?

Here's what we know: Kristin's got the head-turning looks, the fun-loving personality and the sexy, confident, swagga that guys go gaga for. And yet, somehow, she always seems to end up chasing after the one boy she can't actually have. So what's really going on here? Well, either K-Cav's a master of self-sabotage (i.e. she's attracted to all the wrong guys), or else she secretly lurves the drama that comes with moving in on another girl's turf.

+ Think you've got K-Cav all figured out? Take the poll and tell us whether you think the tough-talkin' Hillzie's got a thing for boys with baggage -- or guys with girlfriends!