updated 08/09/2010 AT 11:00 AM ET
•originally published 08/09/2010 AT 12:00 PM ET
Looks like there may be another Kardashian to keep up with: Meet Kougar Kardashian.
Khloé later Tweeted about her new sibling, writing, “we love our long lost sister!”
The Teen Choice Awards air Monday, 8 p.m. ET, on Fox. And while Lopez, 49, made for a hot addition to the reality family, he couldn’t take all the heat away from the leading ladies of the Kardashian clan: Keeping Up with the Kardashians snagged awards for Choice TV Reality Show and Choice TV Female Reality/Variety Star.