It's all in the family? On the latest episode of Keeping Up With the Kardashians, which aired on Sunday, July 20, Brody Jenner saw a little too much of his stepsister Kim Kardashian

The reality stars were in Thailand for a family vacation earlier this year, and while Kardashian's husband Kanye West was unable to make the trip, she wanted to make him feel as though he was there. The only way to do so, of course, was to snap endless selfies and stage sexy photoshoots to show West what he was missing. 

During one posing session, Kardashian, 33, rocked a body-baring sheer white dress, which left little to the imagination. Unfortunately for the mother to North West, 12 months, her stepbrother Jenner, 30, walked in as her assistant was taking sexy photos of her for her man. 

Jenner immediately ran out of the room, shouting "Whoa!" and cursing as Kardashian attempted to cover up, screaming, "Oh my god!" 

"What are you doing?" Jenner, whose father Bruce is married to Kim's mother Kris, questioned. "What the f--k!" 

Things only got worse for Jenner when his brother Brandon and Brandon's wife Leah questioned whether he was turned on my his stepsister. 

"You got a little turned on by your sister," Brandon accused, to which Brody responded nonchalantly, "maybe just a half c--b." 

The white dress shoot was just one of many that Kardashian held while in Thailand. She snapped selfies at every possible moment, captioning one for her rapper love, "Wish you were here." She also famously stripped down to a nude bikini and flaunted her assets in a sexy beach photoshoot, which she posted a throwback from on Monday, July 21.