'KUWTK': Khloe Kardashian Reminds Rob About the Time He Allegedly Had Sex With a Kim Kardashian Lookalike

KUWTK: Khloe Kardashian Asks Rob About Time He Allegedly Had Sex…

North West and Penelope Disick Make a Splash With Car Wash on Ti…

North West and Penelope Disick Go Ziplining With Kourtney Kardas…

Khloé Kardashian Is 'Grateful' for Expanded Family, Tristan 'Rea…

Kim Kardashian Gets Full Body Scan, Says She’s an Athlete

Kim Kardashian and Pete Davidson Split After 9 Months of Dating

Why Kanye West Is ‘Still Bitter’ About Kim Kardashian Dating Pet…

Kim Kardashian Shows Surprising Support for Kanye West Amid Ongo…

Inside Kim Kardashian and Pete Davidson's Breakup: What Went Wro…

Pete Davidson Seeking Trauma Therapy Due to Kanye West's Public …

Katy Perry 'Apologizes' to Kim Kardashian After Making Love Matc…

Kim Kardashian, The Rock and More Stars Jump In to Help Promote …

‘Grease’ Star Olivia Newton-John Dies of Breast Cancer at 73 | E…

Ne-Yo Faces Affair Allegation in Divorce Filing | ET’s The Downl…

'The Bachelorette' Mansion Doesn't Have Enough Beds for the Guys…

‘Little People, Big World’: Matt and Amy Disagree Over Farm Sale…

'Five Guys a Week': Stars Spill on Lifetime’s New Dating Show (E…

Kristin Cavallari and Stephen Colletti Open Up About 'Laguna Bea…

Lala Kent on Navigating the Aftermath of Randall Emmett Drama an…
Sunday's all-new Keeping Up With the Kardashians brought family awkwardness to a whole new level when Rob and Khloe Kardashian took a bizarrely uncomfortable walk down super-gross memory lane.
Rob came to Khloe's house to hang out, but Khloe was still in bed, suffering from menstrual cramps and a fever. She invited Rob to come lay next to her, and things got off to a strange start when he tried to spoon her.
And that was maybe the least-weird part of their time in bed together.
NEWS: Khloe Kardashian Shares Her 'Busted' Face Swaps With Brother Rob
As Rob took her temperature with the back of his hand pressed to her forehead -- and then tried to stroke her face -- Khloe raised a question, seemingly out of nowhere, asking her brother, "Do you remember when you f**ked the girl who won the Kim Kardashian lookalike contest?"
Instead of immediately denying this claim or retching in total disgust, Rob awkwardly laughed, and then tried to change the subject to another girl who showed up to Khloe's house, naked, had sex with Rob and then, as he so eloquently put it, "period-ed" all over her bed.
WATCH: Khloe Kardashian Says Rob Needs to 'Man Up'
Khloe -- who admitted she "kind of" remembered that incredibly memorable story -- then made everything even weirder when asked the one question literally no else was thinking: "Why didn't you ever sleep with someone who won a Khloe Kardashian lookalike contest?"
Needless to say, after the episode, viewers had some questions -- or, well, one question which could basically be summed up as: "Wait, what?"
PHOTOS: The Kardashian Family's Famous Exes
Later in the episode, Khloe made Rob experience what it was like to endure menstrual cramps through the use of a fancy electric muscle simulator, because, at this point, why not?
Check out the video below for a look at some other (less disturbing but still awkward) family drama from Sunday's Keeping Up With the Kardashians.