Kendall Jenner Tweets Pic of Mason's B-Day!

It was cowboys and Indians for reality star Kourtney Kardashian's son Mason's second birthday party. Kourtney's lil' sis Kendall Jenner tweeted a cute pic of her with Mason, Kourtney and Kylie all dressed up for the Wild West-theme bash, with the caption, "masons 2nd birthday! he looks so happy.... lol."

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Mason celebration took place at Kris and Bruce Jenner's Calabasas, California home and included a petting zoo with ponies, goats and pigs and there were also haystacks placed throughout the yard, Life & Style reports. One guest stated that Kourtney and Scott were "really attentive to Mason. They wanted to make sure he had the best time."

What do you think of Mason's Wild West B-day?

Photo courtesy of Twitter