Kylie Jenner had a pretty embarrassing accident while hanging out with friends on Wednesday.

The 18-year-old revealed on Snapchat that she spilled a drink in her lap, and the resulting dark marks on her jeans made it look like she peed herself.

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"Why does this always happen to me?" the reality star moaned in the video, as her friends laughed about the incident.

But the back of her pants were in even worse shape when she stood up! "Does it look fine?" Kylie teased as she tried to see the stain.

Speaking of that booty, scroll down to see photos of the beauty mogul flaunting her impressive derriere!