Well that was quick! Kourtney Kardashian only gave birth to her third child 6 months ago but she is already back at her goal weight of 116lbs.The reality TV star has been working hard at the gym to get her body back to it's pre-pregnancy shape. But, there's apparently another secret to her slim, svelte physique…Detox Tea. According to a source close to the brunette beauty she has been downing several cups of the magic elixir per day. The concoction, which she has been posting about on Instagram is said to rid the body of toxins and give you more energy to work out. Well, whatever she is doing seems to have worked because she's looking great and in record time.