Brody Jenner got a ‘half chub’ when he saw Kim Kardashian’s sexy pics. GROSS GROSS GROSS

Brody Jenner is not our favourite person right now. First he admitted that he and The Hills co-star Lauren Conrad's relationship was nowt but a showmance for the cameras, now he's 'fessing up to some VERY disturbing thoughts about his step-sister, Kim Kardashian.

Remember that Thailand trip the whole Kardashian-Jenner clan took back in April? Yeah, well, what you didn't know was that Kim spent a lot of time taking sexy selfies for Kanye West, who couldn't join them due to a previous engagement in Germany. In the latest episode of* Keeping Up With The Kardashians*, which aired in the US last night, Kim is seen doing a seductive photoshoot in front of the camera while wearing a wet, see-through white dress and no underwear. But wait, what's this? Oh GOD it's Brody, and he's accidentally walked in on her.

"Woah! Woah! Woah! What are you doing?" he yells at her in the awkward footage, as Kim attempts to cover her boobs with her arms. "What the f***!"

Later, when talking to his brother Brandon Jenner and sister-in-law Leah, Brody admitted to a few, ahem, stirrings when he saw Kim practically naked.

"Did you get turned on?" Leah asks Brody. "Maybe just a half chub," comes the response. GROSS. SO GROSS. BURN THIS GROSS WORLD TO ITS CORE.

When Kim recounted the incident on camera, she said: "This is so embarrassing I want to die, and he's, like, frozen, just shocked. It's just like super awkward." Something tells us it's going to be even more awkward at family events from now on.

Kim Kardashian naked - every nude picture she's EVER posted