"I asked Mason if he wanted to have his birthday party with Reign this year and he said yes!" the mother of three wrote. Kourtney Kardashian threw the ultimate alien-themed birthday party for her sons ...

Woah! That was an explosive (and hilarious) hour of television! Resident Alien Season 2 Episode 8 lets many secrets out of the bag, and that doesn't even count the alien baby's good time at the party.