Remember when Kim Kardashian called Kourtney "the least interesting to look at?" There's just one tiny problem with that: Have you seen her Instagram? Between her sultry selfies and her screen-fogging bikini snaps, we'd actually say this might be Kourtney's sexiest year yet! The mother of three also seems to be enjoying the single life following her split from Younes Bendjima in August. The 39-year-old reality TV star was most recently linked to 20-year-old actor Luka Sabbat, though it appears they're just friends. If 2018 is any indication of what Kourtney has in store for us in 2019, let's take what we have left of it to prepare ourselves.