Kourtney Kardashian took to Instagram to share a kissing photo with Scott Disick on Saturday. The 35-year-old "Keeping Up with the Kardashians" star posted a picture of herself sharing a smooch with her longtime boyfriend in honor of Valentine's Day. Kardashian and Disick have been together since 2006, and welcomed their third child, son Reign Aston, in December 2014. "Happy Valentine's Day! Feeling blessed to get to share this day and my life with my true love and our three little angels," she captioned the snapshot. Kardashian and Disick are also parents to 5-year-old son Mason and 2-year-old daughter Penelope. The couple are often subject to tabloid rumors due to their sometimes tumultuous relationship, and recently dismissed claims Disick and Kendall Jenner are having an affair.